adding line about timezone (#1124)

Co-authored-by: Peter Kos <[email protected]>

Author: sjmiller7

index.html

@@ -164,6 +164,7 @@ <h1>What is a Hackathon?</h1>
     <section id="schedule" class="section-pad">
         <h1>Schedule</h1>
         <p>More events coming soon!</p>
+        <p>All times are in EST.</p>
         <div id="schedule-block">
             <div id="schedule-tapes">
                 <div class="tape"></div>