Update support request (#2148)

.github/ISSUE_TEMPLATE/config.yml

@@ -1,4 +1,4 @@
 contact_links:
   - name: Support request
-    url: https://forum.openzeppelin.com/
-    about: Ask a question in the Community Forum
+    url: https://forum.openzeppelin.com/c/support/contracts/18
+    about: Ask the community in the Community Forum