Markdown parsing of URLs

[sscotth]

The contributing page has a link to the Wikipedia article on Git, but the ending ")" is cut off.

https://github.com/joyent/node-website/blob/52f8be7b55e3b4676cd6f8bee544412176ce61a8/doc/documentation/contributing/index.md

Looks to be the markdown compiler since the raw is correct.

markedjs/marked#366

[lucasfcosta]

It seems like there's no fix for this on the Marked repository, maybe we should just encode the link using %29 instead of that ")".