Add MDN & wordpress links

docs/news/announcing-2015.md

@@ -30,7 +30,7 @@ This year, those events will include:
 * Hike (Saturday Afternoon) --- Enjoy the majestic beauty of Portland with this walk in the woods.
 * Writing Day (Sunday Daytime) --- Get together and *write the docs* with your fellow documentarians.
   This is a great opportunity to learn from others and share your knowledge.
-  Document your own projects or contribute to an open-source project such as Wordpress or Mozilla Developer Network.
+  Document your own projects or contribute to an open-source project such as [Wordpress](http://codex.wordpress.org/) or the [Mozilla Developer Network](https://developer.mozilla.org/en-US/).
 * Conference Reception (Sunday Night) --- Come early, get your badge, and get to know other attendees.
 * Official Party (Monday Night) --- Wind down and talk about the day's talks in a relaxed and friendly environment.