Moved discussion link to be in the navigation

Author: Relequestual

_includes/header.html

@@ -25,11 +25,11 @@
             <a class="page-link" href="{{ my_page.url | relative_url }}">{{ my_page.title | escape }}</a>
             {%- endif -%}
           {% endfor -%}
+          <a class="page-link" href="https://join.slack.com/t/json-schema/shared_invite/enQtMjk1NDcyNDI2NTAwLTcyYmYwMjdmMmUxNzZjYzIxNGU2YjdkNzdlOGZiNjIwNDI2M2Y3NmRkYjA4YmMwODMwYjgyOTFlNWZjZjAyNjg">
+            Discussion
+          </a>
         </div>
       </nav>
     {%- endif -%}
-    <a class="page-link" href="https://join.slack.com/t/json-schema/shared_invite/enQtMjk1NDcyNDI2NTAwLTcyYmYwMjdmMmUxNzZjYzIxNGU2YjdkNzdlOGZiNjIwNDI2M2Y3NmRkYjA4YmMwODMwYjgyOTFlNWZjZjAyNjg">
-      Discussion
-    </a>
   </div>
 </header>