layouts: remove reference to the bird site.

Author: micrypt

_layouts/index.html

@@ -71,7 +71,7 @@ <h2 class="title">About</h2>
   href="http://dribbble.com/micrypt" rel="me">designer</a>, <a target="_blank"
   href="https://github.com/micrypt" rel="me">programmer</a>, languages geek and <a
   target="_blank" href="http://www.kendo.co.uk">budoka</a>. These days, he is an <a
-  target="_blank" href="http://espians.com">Espian</a>. <br>Do say hello to <a target="_blank" href="https://twitter.com/micrypt" rel="me">him</a>. 
+  target="_blank" href="http://espians.com">Espian</a>. <br>Do say hello to <a target="_blank" href="https://mastodon.social/@micrypt" rel="me">him</a>. 
 					</p>
 				</div>
 			</div>