Go to the repository Fork the original repository Go to the fork in your own gitHub profile Copy the link of the fork

git clone <link of fork>
git checkout -b <BranchName>
git add <filename>
git commit -m "Add comments of the changes"

In case of a merge conflict: (Make sure the upstream is correct)

git remote add upstream <link to the original repository>
git checkout master
git pull upstream master
git checkout <BranchName>
git merge master

Compare the files and check for differences. Delete the HEAD and markers where necessary.

git add <filename>
git push origin <BranchName>

First dive into your directory and add following lines to vi ~/.bash_profile:

parse_git_branch() {
     git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}
export PS1="\u@\h \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "

Next change your source with the following command source ~/.bash_profile

Now you'll notice some beautiful colors are added in your terminal!