Fix grammar and clarify git revert function behavior.
Bold q to identify it as input that the student is supposed to type.
Remove -a flag from first commit so we only commit the README.md file
and change output to match my expected output
Add a link to the wikipedia article comparing version control systems.
Explicitly add text to the README.md when we create it
Merge pull request #54 from kliph/cliff-git-local-changes

Cliff git local changes