Updating contributors section on web page

closes #418

pages/community.ftl

@@ -53,19 +53,8 @@
     <div class="row mt-3">
         <h2>Contributors</h2>
         <p>
-            If you'd like to contribute to the Keycloak project, please join the Keycloak
-            <a href="https://groups.google.com/forum/#!forum/keycloak-dev/join">developer mailing list</a>. This list is used to
-            discuss new features and improvements to Keycloak.
-        </p>
-        <p>
-            The first step in contributing is usually sending an email to the
-            <a href="https://groups.google.com/forum/#!forum/keycloak-dev">developer mailing list</a> to let
-            others know what you're planning. For a simple bug fix this is obviously not necessary, but if you plan to add
-            a new feature discussing it on the mailing list first may save you a lot of time.
-        </p>
-        <p>
-            To build Keycloak from source first fork our <a href="https://github.com/keycloak/keycloak">Github repository</a>. Then
-            follow the steps in the <a href="https://github.com/keycloak/keycloak/blob/master/README.md">README</a> file.
+            If you'd like to contribute to the Keycloak project, please look at our <a href="https://github.com/keycloak/keycloak/blob/main/CONTRIBUTING.md">contributors guide</a>
+            for the details.
         </p>
     </div>