fix footer and update links

app/assets/stylesheets/application.scss

@@ -26,7 +26,7 @@
 $background-color: #F5F7FB;
 $error-background-color: #EFE6E6;
 
-$footer-height: 80px;
+$footer-height: 65px;
 
 html, body {
   width: 100%;
@@ -45,9 +45,11 @@ a {
 }
 
 .footer {
+  position: fixed;
+  height: $footer-height;
   width: 100%;
-  position: abolute;
-  bottom: 0px;
+  bottom: 0;
+  z-index: 5;
 }
 
 .table-responsive {

app/views/layouts/application.html.erb

@@ -27,7 +27,7 @@
           <i class="fas fa-exclamation-triangle"></i>
           <p class="d-inline">This deployment is using a pre-configured testing server,
           you should replace this with your own.
-          For details, see the <%= link_to "documentation", "http://docs.bigbluebutton.org/install/green-light.html#installing-greenlight", target: "_blank" %>.
+          For details, see the <%= link_to "documentation", "http://docs.bigbluebutton.org/install/greenlight.html#installing-greenlight", target: "_blank" %>.
         <% end %>
       <% end %>
 

app/views/shared/_footer.html.erb

@@ -1,3 +1,3 @@
-<div class="footer">
+<footer class="footer page-footer">
   <h5 class="text-center">Powered by <a target="_blank" href="http://bigbluebutton.org/">BigBlueButton</a>.</h5>
-</div>
+</footer>