feat: issue template config

Author: 3ru

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,12 @@
+blank_issues_enabled: false
+
+contact_links:
+  - name: 🌸 p5.js Issues
+    url: https://github.com/processing/p5.js/issues
+    about: Report issues with the p5.js here.
+  - name: 🖥️ Web Editor Issues
+    url: https://github.com/processing/p5.js-website/issues
+    about: Report issues with the p5.js website here.
+  - name: 💬 Forum
+    url: https://discourse.processing.org/c/p5js
+    about: Have other questions about using p5.js? Ask them here!