update branching section

add quick documentation for beginners

Merge pull request #6 from blackmaskexe/ai-structure-enhancement

Delete Staging/02-Github Basics directory

clean up 02 - GitHub

update structure for 02 - GitHub

complete 01 - Git

final touches before merging

Squash Commit #2

Squash Commit #1

update file order in 01 - Git folder

Testing Empty Commit

create new documentation to support git graph

replace mermaid with git graph log output

replace gitgraph with mermaid