Adding updated git docs

Development/Git/README.md

@@ -10,9 +10,29 @@
 - `git init` - initiallize repository
 - `git add README.md` - add file/s to repository
 - `git commit -m "first commit"` - commit file
-- `git branch -M main`
+- `git branch -M main` - switch branch to main
+
+## Information
+
+- `git status` - view current files status
+
+## Repository changes
+
+- `git reset HEAD~1` - revert to previous commit
+- `git reset --hard` - goes to the previous commit and removes all changes
+
+## Branches
+
+- `git branch [name]` - create new branch
+- `git checkout [name]` - switch to it
+
+## Git merge and rebase
+
+- ``
 
 ## Remote repository push
 
 - `git remote add origin https://github.com/foglar/[name].git` - add remote url
 - `git push origin master` - push master branch
+
+[Video](https://www.youtube.com/watch?v=XwWReqRfnjs)