Create issue template config

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,8 @@
+blank_issues_enabled: true
+contact_links:
+  - name: Matrix Chat
+    url: https://matrix.to/#/#manyfold:one.ems.host
+    about: Come and talk to us with problems, ideas, questions, anything!
+  - name: Social Media
+    url: https://3dp.chat/@manyfold
+    about: Talk to us on Mastodon!