Add github link to main page.

Author: kpeeters

README.rst

@@ -16,6 +16,9 @@ Cadabra
 .. image:: https://github.com/kpeeters/cadabra2/workflows/macOS/badge.svg
    :target: https://github.com/kpeeters/cadabra2/actions?query=workflow%3AmacOS
 
+.. image:: https://github.com/kpeeters/cadabra2/workflows/monterey/badge.svg
+   :target: https://github.com/kpeeters/cadabra2/actions?query=workflow%3Amonterey
+
 *A field-theory motivated approach to computer algebra.*
 
 Kasper Peeters <[email protected]>

web2/cadabra2/source/layout.html

@@ -184,6 +184,11 @@
 			 </div>
 		  </div>
 		</a>
+		<div class="github-link">
+		  <a href="https://github.com/kpeeters/cadabra2/">
+			 <img src="/static/icons/GitHub-Mark-64px.png" />
+		  </a>
+		</div>
 	 </div>
 
 	 <div id="main">