removing obsolete links to FB group

rowers/templates/help.html

@@ -155,7 +155,7 @@
     <p>
       The links in the menu on the left bring you to our blog, where we
       regularly publish how-to's and articles about new functionality, to
-      our Facebook group where you can discuss with other users, and to
+      our discussion group where you can discuss with other users, and to
       a contact page where you can learn how to contact the developers
       of this site.
     </p>

templates/newbase.html

@@ -353,8 +353,8 @@
             <a href="https://analytics.rowsandall.com/">
               <i class="fab fa-wordpress-simple"></i>
             </a>&nbsp;
-            <a href="https://www.facebook.com/rowsandall">
+            <a href="https://rowing-data-analytics.mn.co/feed">
-              <i class="fab fa-facebook"></i>
+              <i class="fas fa-chart-network"></i>
             </a>&nbsp;
         </p>
         <p>
@@ -371,8 +371,8 @@
                 </a>
               </li>
               <li>
-                <a href="https://www.facebook.com/rowsandall">
+                <a href="https://rowing-data-analytics.mn.co/feed">
-                  Rowing Data Facebook Group</a>
+                  Rowing Data Discussion Group</a>
               </li>
               <li>
                 <a href="/rowers/physics/">Rowing Physics</a>