Change the infor for community meetings and office hours

Signed-off-by: Orlin Vasilev <ovasilev@vmware.com>

layouts/shortcodes/community-info.html

@@ -47,7 +47,7 @@ <h3>
           </h3>
 
           <p>
-            See all the meeting information and add our calendar over at <a href="https://github.com/goharbor/community/blob/master/MEETING_SCHEDULE.md" target="_blank">our schedule</a> to get the latest Harbor news, what we're working on, and provide suggestions and feedback. Read, comment, or add agenda items on the <a href="https://github.com/goharbor/community/wiki/Harbor-Community-Meetings" target="_blank">meeting notes</a>.
+            Read, comment, or add agenda items on the <a href="https://github.com/goharbor/community/wiki/Harbor-Community-Meetings" target="_blank">meeting notes</a> and add our calendar and subscribe at <a href="https://lists.cncf.io/g/harbor-users" target="_blank">our mailing list</a> to get the latest Harbor news, what we're working on, and provide suggestions and feedback.
           </p>
         </div>
 
@@ -69,13 +69,6 @@ <h3>
     </div>
   </div>
   <div class="column">
-    <h2>
-      Office Hours
-    </h2>
-
-    <p class="is-size-5">
-      Come join us for Harbor Office Hours every <b>2nd Wednesday</b> at <code>1pm ET / 10am PT</code>. The Harbor Office Hours is a place where you can ask questions like "how does Harbor work?", "how do I do this in Harbor?", and "how do I get started contributing to Harbor?”.
-    </p>
 
     <div class="container">
       <div class="columns is-variable is-6">