added Lahore Chapter logo to HexDex

Author: Usman Tahir

hexdex.html

@@ -176,6 +176,9 @@ <h1 data-i18n="hexdex-h1">Hexdex</h1>
           <a class="imglink" href="https://github.com/nodeschool/costarica" title="Costa Rica">
             <img class="hex" src="/images/nodeschool-costarica.png" alt="Costa Rica Hexagon">
           </a>
+          <a class="imglink" href="http://nodeschool.io/Lahore" title="Lahore">
+            <img class="hex" src="/images/nodeschool-lahore.png" alt="Lahore Hexagon">
+          </a>
           <img class="hex" src="/images/nodeschool-blank.png" alt="blank hexagon" aria-hidden="true">
       </div>
     </div>