fix getting help block

Author: AlexM

_includes/docs/user-guide/troubleshooting.md

@@ -170,22 +170,20 @@ For OAuth2 configuration click [here](/docs/{{docsPrefix}}user-guide/oauth/azure
 ## Getting help
 
 <section id="talkToUs">
-    <main>
-        <div id="gettingHelp">
-            <div>
-                <a href="https://gitter.im/thingsboard/chat">Community chat</a>
-                <p>Our Gitter channel is the best way to contact our engineers and share your ideas with them.</p>
-            </div>
-            <div>
-                <a href="https://groups.google.com/forum/#!forum/thingsboard">Q&A forum</a>
-                <p>Our user forum is a great place to go for community support.</p>
-            </div>
-            <div>
-                <a href="http://stackoverflow.com/questions/tagged/thingsboard">Stack Overflow</a>
-                <p>The ThingsBoard team will also monitor posts tagged thingsboard. If there aren’t any existing questions that help, please ask a new one!</p>
-            </div>
-        </div>
-    </main>
+    <div id="gettingHelp">
+        <a href="https://gitter.im/thingsboard/chat">
+            <h1>Community chat</h1>
+            <p>Our Gitter channel is the best way to contact our engineers and share your ideas with them.</p>
+        </a>
+        <a href="https://groups.google.com/forum/#!forum/thingsboard">
+            <h1>Q&A forum</h1>
+            <p>Our user forum is a great place to go for community support.</p>
+        </a>
+        <a href="http://stackoverflow.com/questions/tagged/thingsboard">
+            <h1>Stack Overflow</h1>
+            <p>The ThingsBoard team will also monitor posts tagged thingsboard. If there aren’t any existing questions that help, please ask a new one!</p>
+        </a>
+    </div>
 </section>
 
 If your problem isn't answered by any of the guides above, feel free to contact ThingsBoard team.