Add Mastodon link

_includes/sidebar.html

@@ -36,8 +36,8 @@
     </nav>
 
     
-    <h6>Powered by jekyll and Fohdeesha.
+    <h6>Powered by jekyll and Fohdeesha. &middot; <a href="https://git.pickmy.org/nq4t/nq4t-dot-com-jekyll" target="_blank">Source</a>
     <br>Last updated: {{ site.time }}
-    <br><a href="https://git.pickmy.org/nq4t/nq4t-dot-com-jekyll" target="_blank">Site source</a> &middot; mail: nq4t(at)nq4t.com</h6>	
+    <br><a rel="me" href="https://mastodon.hams.social/@nq4t">Mastodon</a> &middot; mail: nq4t(at)nq4t.com</h6>	
   </div>
 </div>

public/css/hyde.css

@@ -36,12 +36,12 @@ html {
 }
 @media (min-width: 48em) {
   html {
-    font-size: 2.1vh;
+    font-size: 2vh;
   }
 }
 @media (min-width: 58em) {
   html {
-    font-size: 2.1vh;
+    font-size: 2vh;
   }
 }