update git config username and email code example

Example 1: configure git username and email

git config --global user.name "Your Name"git config --global user.email "[email protected]"

Example 2: change git username and email

$ git config --global user.email "[email protected]"

Example 3: git change username email

# FOR ALL REPOS
## change username
git config --global user.name "John Doe"
## change email address
git config --global user.email "[email protected]"

# FOR CURRENT-DIRECTORY REPO ONLY
## change username
git config user.name "John Doe"
## change email address
git config user.email "[email protected]"

Example 4: update git config username and email

git config --global --edit

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Misc Example