List of TA on wiki: use cleaner url

[Piyush P Kurur]

For email addresses use cleaner email url. Use <[e-mail]> to get [e-mail]. Markdown also supports such short cuts for links whose text is the url itself. For example, you can write <http://www.google.com> to get the link http://www.google.com

[Abhimanyu Jaju]

Done.

[Piyush P Kurur]

I am closing this issue as it is done