git part 2

Fork, clone, add to workspace, new branch, changes, push - ready with formatting issues. SSH and merge request are not here yet. Introduction slide is half ready.

theme

-Subproject commit 8e70c7685bf9477f500bbc57f2d2c36072fe7741
+Subproject commit 00a2181eef57a4ea5a1124400ad1f9812e80fab0