Add comments to issue template

.github/ISSUE_TEMPLATE.md

@@ -1,16 +1,22 @@
-## Expected Behavior
+<!-- 
 
+BEFORE OPENING AN ISSUE:
 
-## Actual Behavior
+-> Check the wiki: https://northstar.tf/wiki, mainly the Troubleshooting and FAQ sections
+-> Use the search bar to check if there's already an issue for your problem: https://github.com/R2Northstar/Northstar/issues
+-> Check #announcements and #faq on Discord: https://northstar.tf/discord
 
+-->
 
-## Steps to Reproduce the Problem
+### Bug
+Replace this line with the bug you've encountered and what is the expected behaviour.
 
+### Steps to reproduce
+<!-- Add some clear steps on how to reproduce this problem -->
   1.
   2.
   3.
 
-## Specifications
-
+### Specifications
   - Northstar version:
-  - Platform:
+  - Platform: <!-- Origin/Steam -->