Add a footer link to the git repo

src/project/static/css/style.css

@@ -504,6 +504,11 @@ footer {
   opacity: 0.8;
 }
 
+footer a, footer a:visited, footer a:active {
+  color: var(--dust);
+  text-decoration: underline;
+}
+
 span.time_remaining {
   color: var(--fade);
 }

src/project/templates/base.html

@@ -106,7 +106,7 @@
             </article>
         </main>
         <footer>
-            data.coop membersystem version 0.0.1
+            data.coop membersystem alpha - report issues on <a href="https://git.data.coop/data.coop/membersystem/">git</a>
         </footer>
         <script>
           const themeSwitcher = document.getElementById('theme-switcher');