adding example to twitter

index.html

@@ -187,6 +187,7 @@ <h1><img src="img/twitter.png"> Twitter</h1>
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 										<p>Twitter is one of the most frequented social media networks in existence today. Designed to instantly connect users to what's most important; you can follow other cities, local business, community leaders, and news outlets. The nature of the platform is viral -- individuals passing along one another's comments to their own networks -- making it one of the quickest, easiest methods to broadcast information to a expansive audience.<br /> 
 										<p>There is one primary Twitter account for the City and County of Honolulu: <a href="http://twitter.com/honolulugov"> twitter.com/HonoluluGov</a></p>
+                    <p> Here is an example of city that use Twitter well: <a href="https://es.twitter.com/PhiladelphiaGov">@PhiladelphiaGov</a>.</li>
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 					              <li>Explore Twitter: <a href="#get-started-twt">Getting Started</a> | <a href="#fundamental-twt"> The Fundamentals </a>|<a href="#tactic-twt"> Some Tactics</a></li>