Update README formatting

[nschonni]

Empty brackets cause the markdown to swallow the links. Opted for raw links over using the site name as the anchor.

[lukeis]

This may sound a bit silly for this change, but can you please confirm you have signed the CLA:
http://goo.gl/qC50R

[nschonni]

Yes, I did after I submitted. Maybe it got stuck in the tubes.
PS: I noticed the were a few more GitHub casing issues in the README

[lukeis]

thanks :) (we just ask because there's only one individual who can actually read the CLA and often trust the word of the user).

Let me know if you want to make those additional changes and I'll wait for an update to the pull request

[nschonni]

Sure, I'll temporarily close this and make the additional changes when I'm home

[nschonni]

Fixed GitHub casing and the power git checkout link

[lukeis]

Merged in revision 67ce103 (this mirror will be updated soon).

Also I squashed the commits. Thanks for the patch :)

[nschonni]

No problem, I forgot about the quash bit.
What about adding something like this SeleniumBuilder/se-builder#5 with the additional GitHub specific info?

[lukeis]

Yes, something like that would be good, although the wiki is on googlecode and not github:
http://code.google.com/p/selenium/w/list

And probably just an adjustment of http://code.google.com/p/selenium/wiki/GettingInvolved (or extra info)
That lives in this repo:
http://code.google.com/p/selenium/source/browse/GettingInvolved.wiki?repo=wiki
(you can submit a patch to the google code wiki by clicking the 'edit' button on that page)