Added the tutorials again after rebasing

apparently, the dev branch isn't really where development should be sent to, so rebased to master to ensure PR without conflicts.

tutorials/first-config.md

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+# First Configuration
+
+**NOTE:** If you have any troubles, check [this extensive FAQ](https://github.com/M66B/FairEmail/blob/master/FAQ.md).
+You may also ask in [this XDA Forum thread](https://forum.xda-developers.com/t/app-5-0-fairemail-fully-featured-open-source-privacy-oriented-email-app.3824168/)
+or via email to [marcel@faircode.eu](mailto:marcel@faircode.eu). Bad reviews won't help you or the developer, so try asking in person first.
+
+## 1. Accepting the License Agreement
+When you start the app for the first time, you need to accept the license agreement.
+![license agreement](images/firstconf-00_license.png)
+
+
+## 2. Starting the Wizard
+FairEmail has a setup wizard integrated, that will lead you through the process. Choose the wizard for easy configuration. 
+If your email provider is not listed, or if you want to authenticate using a password, choose "Other provider".
+
+**NOTE:** OAuth only works for the Play Store and GitHub version. Third party builds (e.g. on F-Droid) do not support OAuth.
+
+**NOTE:** Google OAuth only works for Google accounts added on your Android device. Also see [FAQ #111 Is OAuth supported?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq111)
+
+![wizard options](images/firstconf-01_wizard-00.png)
+
+
+## 3. Fill in Credentials
+Fill in your screen name, your email address and your password. FairEmail will fetch the server settings automatically for most email providers.
+If you want to check the password for typos, you can enable showing the entered password by clicking on the eye icon.
+After you have entered everything, press the "check" button.
+
+**NOTE:** This step requires working internet connection.
+
+![wizard "other provider"](images/firstconf-02_wizard-01.png)
+
+
+## 4. Setting up Default Folders
+FairEmail will try to recognize the default folders for the inbox, sent messages, spam messages, drafts and archived messages.
+Accept with "OK" if the settings look fine. Otherwise, you may also edit the settings.
+
+![default folders dialog](images/firstconf-03_wizard-02.png)
+
+
+## 5. Disable Battery Optimization
+
+Below the wizard, there are two more options numbered:
+
+* Grant access to your contacts, if you want to use the contacts on your device (optional)
+* Disable battery optimization (highly recommended to ensure the app works in the background)
+
+## 6. (Unified) Inbox
+
+Once you press the back button, you'll enter your new inbox. At first, you will see a pop-up message with important information.
+For your better understanding, there will be additional information you can dismiss by tapping on the "X".
+Please read them as they will help you in understanding how the app works and how to get support.
+
+That's it, your app is set up to work.
+
+![inbox image](images/firstconf-04_inbox-00.png)
+
+
+## Optional Settings
+FairEmail will already work with the configuration above. However, you may want to change some minor things.
+As FairEmail comes with a lot of options, you can very likely adjust the app and its behavior the way you personally would like it.
+However, all of those options are optional. The app works stable with the default options without requiring any adjustment by you.
+
+If you still would like to change the settings, just take time looking around the available options. You can also search through available settings.
+The most common three settings you might want to set on the first run are mentioned below.
+Apart from that, there's also [this separate manual describing various settings / options](/settings-overview.md) in FairEmail.
+
+### 1. Disable the permanent notification (watchdog)
+The watchdog is a necessary foreground service as many phones kill the app once there is nothing in the foreground anymore.
+However, it is designed in a way that it has no toll on your battery. If the permanent notification banner annoys you you can just turn the notification off.
+To do so, press and hold on the notification and then click on the settings icon (gear symbol).
+Now disable the slider for the "Monitor".
+
+![foreground services notification](images/firstconf_watchdog.png)
+
+### 2. Changing Start Screen
+By default you will see a unified inbox on your start screen, which will summarize the inboxes of all your mail accounts in FairEmail.
+If you prefer to have a classic account view on start, maybe because you manage a greater number of email accounts with FairEmail,
+you can do this as follows:
+
+1. Open the menu by tapping the three dashes in the top left corner (hamburger menu)
+2. Choose "Settings"
+3. At the top bar, select the tab called "Display"
+4. Go to the option "Show on start screen" and select an available option within the dropdown menu
+5. Use the back key to get back to the start screen
+
+### 3. Changing the Theme
+You can slightly change the way the app looks. To this end, FairEmail comes with multiple pre-installed themes.
+You can switch themes like this:
+
+1. Open the menu by tapping the three dashes in the top left corner (hamburger menu)
+2. Choose "Settings"
+3. At the top bar, select the tab called "Display"
+4. Press the "Select theme" button
+5. Select the theme of your choice and confirm
+
+**NOTE:** Dynamic themes are not possible in Android.
+See [FAQ #164 Can you add customizable themes?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq164) for further details.

tutorials/manual-config.md

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+# TODO
+This manual does not exist yet. It is to be added at a later time.

tutorials/readme.md

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+# FairEmail Manuals
+
+The following manuals describe how to configure FairEmail as well as how to modify the settings on your own requirements.
+FairEmail offers many options you can always explore yourself within the app or in [this extensive FAQ](https://github.com/M66B/FairEmail/blob/master/FAQ.md).
+The manuals here will only cover the basics that should suffice for most users.
+
+**NOTE:** If you have any troubles, check [this extensive FAQ](https://github.com/M66B/FairEmail/blob/master/FAQ.md).
+You may also ask in [this XDA Forum thread](https://forum.xda-developers.com/t/app-5-0-fairemail-fully-featured-open-source-privacy-oriented-email-app.3824168/)
+or via email to [marcel@faircode.eu](mailto:marcel@faircode.eu). Bad reviews won't help you or the developer, so try asking in person first.
+
+## Table of Contents
+
+* [First Configuration](first-config.md) - A manual how to set up FairEmail to just work
+* [Settings Overview](settings-overview.md) - A manual describing where and how to find some settings & options
+* [Manual Configuration](manual-config.md) - A manual describing how to manually add your accounts (without the wizard)

tutorials/settings-overview.md

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+# Settings Overview
+In this manual, some settings and options in FairEmail will be described without going into the details.
+Be reminded that all settings here are optional. FairEmail works without any modifications.
+You can simply add an account and already start reading and writing your emails.
+
+**NOTE:** If you have any troubles, check [this extensive FAQ](https://github.com/M66B/FairEmail/blob/master/FAQ.md).
+You may also ask in [this XDA Forum thread](https://forum.xda-developers.com/t/app-5-0-fairemail-fully-featured-open-source-privacy-oriented-email-app.3824168/)
+or via email to [marcel@faircode.eu](mailto:marcel@faircode.eu). Bad reviews won't help you or the developer, so try asking in person first.
+
+**NOTE:** A tutorial on the first configuration of the app and on how to add an account can be found in the [first configuration manual](first-config.md)
+
+## Opening the Settings
+To open the settings, tap the three dashes in the top left corner (hamburger menu) and select "Settings" with the gear icon.
+That's it, you're already within the settings.
+
+You will now find multiple categories:
+
+* **Main** - To add a new account
+* **Receive** - To adjust the synchronizing and checking of incoming mails
+* **Send** - Options related to writing and sending an email
+* **Connection** - Options related to using your internet connection and downloading messages
+* **Display** - To adjust how the app and the messages look like
+* **Behavior** - To adjust how the app should behave
+* **Privacy** - To enable / disable options that increase your privacy
+* **Encryption** - Options related to encrypted messaging (PGP & S/MIME)
+* **Notifications** - Options related to the notifications by FairEmail
+* **Miscellaneous** - Some other options such as error reporting
+
+## Table of Contents
+
+* [1. Adding a new Account](#1-adding-a-new-account)
+* [2. Receiving Messages in the Daytime only](#2-receiving-messages-in-the-daytime-only)
+* [3. Enable Checking for Spam](#3-enable-checking-for-spam)
+* [4. Edit Your E-Mail Signature](#4-edit-your-e-mail-signature)
+* [5. Limit Mobile Data Usage](#5-limit-mobile-data-usage)
+* [6. Changing the Theme](#6-changing-the-theme)
+* [7. Changing Start Screen](#7-changing-start-screen)
+* [8. Show an Avatar for each Sender](#8-show-an-avatar-for-each-sender)
+* [9. Enable Biometric Authentication](#9-enable-biometric-authentication)
+* [10. Enable Error Reporting](#10-enable-error-reporting)
+
+## 1. Adding a new Account
+If you want to add a new account, use the wizard in the Main screen. Follow [this first configuration guide](/first-condig.md).
+You can also [add an account manually](/manual-config.md). That requires you to enter everything manually, so it's not recommended.
+
+## 2. Receiving Messages in the Daytime only
+You might want to not receive any messages at late hours. It is very easy and straightforward to tell FairEmail to synchronize only during specified days and hours.
+You can also exclude some accounts from this scheduling such that they are always synchronized regardless of the day and time.
+
+More information on scheduling can be found in [FAQ #78 How do I use schedules?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq78).
+
+### 2.1 Set Synchronization Day & Time
+Follow the following steps:
+
+1. Go to the "Receive" settings
+2. Enable the option "Schedule"
+3. Set the days and time-frame messages should be synchronized
+
+### 2.2 Exclude an Account from the Schedule
+You might want to exclude one specific account from the schedule and always receive messages regardless of the day and time.
+If so, follow these steps:
+
+1. Go to the "Main" settings
+2. Click on "Manual setup and account options" below the wizard
+3. Press the "Accounts" button
+4. Select the account
+5. Scroll down until you find the "Advanced" options (gear icon) and press the button
+6. Enable the option "Synchronize outside the schedule too"
+
+
+## 3. Enable Checking for Spam
+FairEmail can perform various checks on incoming mails. This can be enabled in the "Receive" settings within the "Checks" options.
+
+1. Go to the "Receive" settings
+2. Scroll down to "Checks"
+3. Enable the option "Check if the sender's domain name is on a spam block list"
+
+**NOTE**: The status of the performed checks can be indicated through an icon for each message.
+To enable this, open the "Display" settings enable showing warnings and the status indicator under "Advanced".
+
+
+
+## 4. Edit Your E-Mail Signature
+The email signature is the text that is always added below the messages you send. The signatures can vary for each identity you send emails from.
+To add or edit your signature, do as follows:
+
+1. Go to the "Main" settings
+2. Click on "Manual setup and account options" below the wizard
+3. Press the "Identities" button
+4. Press the "Edit signature" button
+5. Enter or edit your signature and save it
+
+## 5. Limit Mobile Data Usage
+You can set up whether to use metered connections such as mobile data and how much kilobytes of data to use per message.
+You can also disable downloading messages when roaming.
+
+Go to the "Connection" settings and you will find the following "General" options:
+
+* Use metered connections - using mobile data and paid Wi-Fi hotspots
+* Download while roaming
+* Roam like at home - Roaming within the EU won't be considered as roaming
+
+More information in [FAQ #105 How does the roam-like-at-home option work?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq105).
+
+## 6. Changing the Theme
+You can slightly change the way the app looks. To this end, FairEmail comes with multiple pre-installed themes.
+You can switch themes like this:
+
+1. Open the menu by tapping the three dashes in the top left corner (hamburger menu)
+2. Choose "Settings"
+3. At the top bar, select the tab called "Display"
+4. Press the "Select theme" button
+5. Select the theme of your choice and confirm
+
+**NOTE:** Dynamic themes are not possible in Android.
+See [FAQ #164 Can you add customizable themes?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq164) for further details.
+
+## 7. Changing Start Screen
+By default you will see a unified inbox on your start screen, which will summarize the inboxes of all your mail accounts in FairEmail.
+If you prefer to have a classic account view on start, maybe because you manage a greater number of email accounts with FairEmail,
+you can do this as follows:
+
+1. Open the menu by tapping the three dashes in the top left corner (hamburger menu)
+2. Choose "Settings"
+3. At the top bar, select the tab called "Display"
+4. Go to the option "Show on start screen" and select an available option within the dropdown menu
+5. Use the back key to get back to the start screen
+
+## 8. Show an Avatar for each Sender
+There are multiple ways to show an avatar for each sender. You can enable multiple at once.
+
+1. Go to the "Display" settings
+2. Scroll down to the "Message header" section
+3. Enable the options of your choice
+
+**NOTE:** Apart from the generated icons, there might be a privacy risk with each available option.
+Gravatars and Libravatar might not be available in the PlayStore version as Google falsely flags the app to be a spyware otherwise.
+
+## 9. Enable Biometric Authentication
+You might want to protect your app via a PIN or a fingerprint to ensure no unauthorized person gains access to your messages.
+To do so, follow these steps:
+
+1. Go to the "Privacy" settings
+2. Press on the "PIN" or "Enable fingerprint" button
+3. Follow the instruction on your screen
+
+## 10. Enable Error Reporting
+Error reporting is disabled by default However, enabling this helps the developer finding any bugs and improving the app.
+If you want to enable error reporting, do as follows:
+
+1. Go to the "Miscellaneous" settings
+2. Enable the option "Send error reports"
+
+More information in [FAQ #104 What do I need to know about error reporting?](https://github.com/M66B/FairEmail/blob/master/FAQ.md#user-content-faq104).