Meant to fix this like 4 commits ago, but have forgotten about it each time,...

Meant to fix this like 4 commits ago, but have forgotten about it each time, so I made a commit just for fixing the Twitter link.

srctweb/website/templates/contact.html

@@ -39,7 +39,7 @@ srct-devs@lists.srct.gmu.edu
 
 <p>We also have a
 <a href="https://facebook.com/MasonSRCT">public Facebook page</a>, a
-<a href="https://twitter/com/MasonSRCT">Twitter account</a>,
+<a href="https://twitter.com/MasonSRCT">Twitter account</a>,
 a <a href="https://reddit.com/MasonSRCT">subreddit</a>,
 and many of our members are regular contributors on
 <a href="https://reddit.com/r/gmu/">/r/gmu</a>.</p>