add a prefix for docs related issues

.github/ISSUE_TEMPLATE/config.yml

@@ -4,4 +4,4 @@ blank_issues_enabled: false
 contact_links:
   - name: GitHub Discussions
     url: https://github.com/nanobrowser/nanobrowser/discussions
-    about: Please ask and answer questions here to keep the issue tracker clean.
+    about: For questions and discussions that don't belong in issues, please use our Discussions forum.

.github/ISSUE_TEMPLATE/docs.yml

@@ -1,5 +1,6 @@
 name: Documentation
 description: Suggest a change to our documentation
+title: "[Docs]: "
 labels: ["docs", "needs-triage"]
 body:
   - type: markdown