All OS either on windows and linuxs has there desired user. You can set the profile and bash settings from a file named as ~/.bashrc or ~/.profile.
If you have installed BASH on your windows machine using WSL and want to beautify your git terminal you need to update the ~/.bashrc
Download the git prompt script in home path.
curl -o ~/.git-prompt.sh https://raw.githubusercontent.com/git/git/master/contrib/completion/git-prompt.sh