Update index.html

Author: vaibhavdaren

index.html

@@ -285,7 +285,7 @@ <h3><a href="#">Join our slack Channel</a></h3>
                                     Don't Wait ,  Connect right now  .
                                     Get united in a common goal  </p>
                         <form>
-				<a href="hhttps://codeuino.slack.com/" class="btn btn-danger"><button type="submit" class="btn btn-danger" >JOIN US</button></a>
+	<a href="https://codeuino.slack.com/"><button type="submit" class="btn btn-danger" >JOIN US</button></a>
                         </form>
                     </div>
                 </div>