how to make a directory a git repo code example
Example 1: how to initialize a git repository command line
git init
git add .
git commit -m "Initial commit"
git remote add origin [email protected]:username/new_repo
git push -u origin master
Example 2: how to make a folder into git repo
$ git remote add origin [email protected]:username/new_repo
$ git push -u origin master
Example 3: turn a folder into a git repo
$ git filter-branch --prune-empty --subdirectory-filter FOLDER-NAME BRANCH-NAME
> Rewrite 48dc599c80e20527ed902928085e7861e6b3cbe6 (89/89)
> Ref 'refs/heads/BRANCH-NAME' was rewritten