docs(assets): add graphical assets

ee722984 · keewek · 596122cc · ee722984 · ee722984 · ee722984
--- a/assets/1024_compare.gif
+++ b/assets/1024_compare.gif
--- a/assets/1024_compare_with.gif
+++ b/assets/1024_compare_with.gif
--- a/assets/1024_compare_with.png
+++ b/assets/1024_compare_with.png
--- a/assets/1024_menu.png
+++ b/assets/1024_menu.png
--- a/assets/727_compare.gif
+++ b/assets/727_compare.gif
--- a/assets/727_compare_with.png
+++ b/assets/727_compare_with.png
--- a/assets/727_menu.png
+++ b/assets/727_menu.png
--- a/assets/gui_compare_with.png
+++ b/assets/gui_compare_with.png