meta: add issue links to landscape, urbit-dev

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Landscape feature request
+    url: https://github.com/urbit/landscape/issues/new?assignees=&labels=feature+request&template=feature_request.md&title=
+    about: Landscape is comprised of Tlon's user applications and client for Urbit. Submit Landscape feature requests here.
+  - name: urbit-dev mailing list
+    url: https://groups.google.com/a/urbit.org/g/dev
+    about: Developer questions and discussions also take place on the urbit-dev mailing list.

.github/ISSUE_TEMPLATE/os1-bug-report.md

@@ -1,6 +1,6 @@
 ---
-name: OS1 Bug report
-about: 'Use this template to file a bug for any OS1 app: Chat, Publish, Links, Groups,
+name: Landscape bug report
+about: 'Use this template to file a bug for any Landscape app: Chat, Publish, Links, Groups,
   Weather or Clock'
 title: ''
 labels: landscape