Summary:
Add registration deadline. We need to send guest lists to security
before that.
Test Plan: N/A
Reviewers: haobo
CC: leveldb
Differential Revision: https://reviews.facebook.net/D17085
<h2>How to Register?</h2>
<p>
-Please send registration email to Vanessa Nance (vanessan@fb.com), with the
-following information:
+Please send registration email to Vanessa Nance (vanessan@fb.com) before March
+24, with the following information:
<ul>
<li>Name:</li>