Have you ever wondered how your ReadMe you are just writing will show up on the GitHub website?
I did, a couple of times actually.
And it is just annoying to make a change, commit, reload the website, check, make another change, commit, ...
Right now, it was annoying enough for me to check the web because I was pretty sure I was not the only one thinking so. And I was right:
This is cool dynamic preview of your contents, making it damn easy to write a fancy ReadMe which remains easily readable as plain text as well as a rendered website on GitHub.
Thank you kei-s (Kei Shiratsuchi).