add issue contact links

Author: urish

Diff for: .github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,7 @@
+contact_links:
+  - name: Public Roadmap 
+    url: https://wokwi.com/features
+    about: Vote for your favorite features here
+  - name: Wokwi Discord
+    url: https://wokwi.com/discord
+    about: Friendly chat with many helpful folks and normally prompt replies