Add Prague event

Author: JoelBesada

index.html

@@ -77,6 +77,9 @@ <h2>Community organized events</h2>
       <p>
         São Paulo &middot; July 2, 2016 &middot; <a href="http://codeinthedark.com.br" target="_blank">RSVP</a>
       </p>
+      <p>
+        Prague &middot; May 20, 2016 &middot; <a href="http://codeinthedark.cz" target="_blank">RSVP</a>
++     </p>
       <p>
         Spokane &middot; May 20, 2016 &middot; <a href="http://hackspokane.com" target="_blank">RSVP</a>
       </p>