setup git and it is ready for work.

gistfile1.txt

git config --global user.name "Your Name"
git config --global user.email “your_email@whatever.com"
Unix/Mac users:
git config --global core.autocrlf input
git config --global core.safecrlf true
Windows users:
git config --global core.autocrlf true
git config --global core.safecrlf true

FILE: hello.txt

puts "Hello, CHANGE1”

Add this Change
EXECUTE:
git add hello.txt

Second change: Add a comment
FILE: hello.rb

Default is "World"

puts "Hello, CHANGE1”

Check the current status
git status

Committing
git commit -m "Added a default value"
git status

Add the Second Change
git add .
git status

Commit the Second Change
git commit -m "Added a comment"

git log --oneline --abbrev-commit --all --graph --decorate