update link to community forem wm tag

Author: huijing

src/components/pages/Footer.astro

@@ -2,7 +2,7 @@
 ---
 <footer>
   <ul>
-    <li><a href="https://community.interledger.org/">Community Forem</a></li>
+    <li><a href="https://community.interledger.org/t/webmonetization">Community</a></li>
     <li><a href="https://wicg.io/">Web Incubator Community Group</a></li>
     <li><a href="https://github.com/WICG/webmonetization">Github</a></li>
   </ul>

src/components/pages/TopNav.astro

@@ -17,7 +17,7 @@
     <ul id="navMenu" class="nav-menu collapsed">
        <li class="nav-link__docs"><a href="/docs/">Documentation</a></li>
        <li class="nav-link__docs"><a href="javascript:void(0)">Tools (coming soon)</a></li>
-       <li class="nav-link__docs"><a href="https://community.interledger.org/">Community</a></li>
+       <li class="nav-link__docs"><a href="https://community.interledger.org/t/webmonetization">Community</a></li>
        <li class="nav-link__github"><a href="https://github.com/WICG/webmonetization/"><img src="/img/icon-github.svg" alt="Link to Github repository"></a></li>
     </ul>
  </nav>