Added meetup icon

Author: Jorge Coca

CONTRIBUTING.md

@@ -28,6 +28,7 @@ linkedin_url:
 pinterest_url:
 slack_url: https://flutterstudygroup.slack.com/messages/CDZAE1S2U
 twitter_url: https://twitter.com/ChicagoFlutter
+meetup_url: https://www.meetup.com/Flutter-Chicago
 
 # build settings
 markdown: kramdown

_config.yml

@@ -28,6 +28,7 @@ linkedin_url:
 pinterest_url:
 slack_url: https://flutterstudygroup.slack.com/messages/CDZAE1S2U
 twitter_url: https://twitter.com/ChicagoFlutter
+meetup_url: https://www.meetup.com/Flutter-Chicago
 
 # build settings
 markdown: kramdown

_config_local.yml

@@ -97,12 +97,13 @@ <h3>Address</h3>
 				{% if site.linkedin_url %}
 				<li><a href="{{ site.linkedin_url }}" class="icon alt fa-linkedin" target="_blank"><span class="label">LinkedIn</span></a></li>
 				{% endif %}
+				{% if site.meetup_url %}
+				<li><a href="{{ site.meetup_url }}" class="icon alt fa-meetup" target="_blank"><span class="label">Meetup</span></a></li>
+				{% endif %}
 			</ul>
 			<ul class="copyright">
 				<li>&copy; {{ site.title }} {{ site.subtitle }}</li>
 				<li>Design: <a href="https://html5up.net" target="_blank">HTML5 UP</a></li>
-				<li>Jekyll integration: <a href="http://andrewbanchi.ch" target="_blank">Andrew Banchich</a></li>
-
 			</ul>
 		</div>
 	</footer>