Add more social icons, update text a little bit.

_includes/navbar.html

@@ -19,9 +19,12 @@
 	  </ul>
 	  <ul class="nav navbar-nav navbar-right navbar-social">
 		<li><a href="https://github.com/casutton/"><i class="fa fa-github fa-navbar" aria-hidden="true"></i></a></li>
+    <li><a href="https://sigmoid.social/@chas"><i class="fa fa-brands fa-mastodon fa-navbar" aria-hidden="true"></i></a></li>
 		<li><a href="https://twitter.com/RandomlyWalking"><i class="fa fa-twitter fa-navbar" aria-hidden="true"></i></a></li>
-		<li><a href="http://scholar.google.co.uk/citations?user=hYtGXD0AAAAJ&amp;hl=en"><i class="fa fa-google fa-navbar" aria-hidden="true"></i></a></li>
-		<li><a href="/csutton/#contact"><i class="fa fa-envelope-open fa-navbar" aria-hidden="true"></i></a></li>
+		<li><a href="http://scholar.google.co.uk/citations?user=hYtGXD0AAAAJ&amp;hl=en"><i class="ai ai-google-scholar fa-navbar" aria-hidden="true"></i></a></li>
+		<li><a href="https://www.semanticscholar.org/author/Charles-Sutton/37210858"><i class="ai ai-semantic-scholar fa-navbar" aria-hidden="true"></i>i</i></a></li>
+    <li><a href="https://orcid.org/0000-0002-0041-3820"><i class="fa fa-brands fa-orcid fa-navbar" aria-hidden="true"></i></a></li>
+    <li><a href="/csutton/#contact"><i class="fa fa-envelope-open fa-navbar" aria-hidden="true"></i></a></li>
           </ul>
 	</div><!--/.nav-collapse -->
       </div>

_layouts/default.html

@@ -21,7 +21,8 @@
     <!-- Fonts -->
     <link href="https://fonts.googleapis.com/css?family=Lora:normal,b,i,bi" rel="stylesheet">
 
-    <script src="https://use.fontawesome.com/60beeb5aee.js" type="text/javascript"></script>
+    <script src="https://kit.fontawesome.com/97f453be06.js" crossorigin="anonymous"></script>
+    <link rel="stylesheet" href="/csutton/css/academicons.min.css"/>
 
     <link href="/csutton/css/base.css" rel="stylesheet">
     <script src="/csutton/js/pubs.js" type="text/javascript"></script>