diff --git a/images/1.png b/images/1.png
new file mode 100644
index 0000000000..fb546eda44
Binary files /dev/null and b/images/1.png differ
diff --git a/images/2.png b/images/2.png
new file mode 100644
index 0000000000..6b667ce424
Binary files /dev/null and b/images/2.png differ
diff --git a/images/3.png b/images/3.png
new file mode 100644
index 0000000000..4878b9a607
Binary files /dev/null and b/images/3.png differ
diff --git a/images/4.png b/images/4.png
new file mode 100644
index 0000000000..3a43cbe134
Binary files /dev/null and b/images/4.png differ
diff --git a/images/5.png b/images/5.png
new file mode 100644
index 0000000000..8e4ddc6702
Binary files /dev/null and b/images/5.png differ
diff --git a/images/6.png b/images/6.png
new file mode 100644
index 0000000000..7d32fdafb1
Binary files /dev/null and b/images/6.png differ
diff --git a/images/6_bis.png b/images/6_bis.png
new file mode 100644
index 0000000000..2b554000b9
Binary files /dev/null and b/images/6_bis.png differ
diff --git a/images/7.png b/images/7.png
new file mode 100644
index 0000000000..e6329609da
Binary files /dev/null and b/images/7.png differ
diff --git a/images/7_2.png b/images/7_2.png
new file mode 100644
index 0000000000..cf1a02da90
Binary files /dev/null and b/images/7_2.png differ
diff --git a/images/7_3.png b/images/7_3.png
new file mode 100644
index 0000000000..d69e1228ef
Binary files /dev/null and b/images/7_3.png differ