docs: don't add tracking checklist to new issues.

Issues currently get a tracking checklist by default.

Author: filipesilva

Diff for: .github/ISSUE_TEMPLATE.md

@@ -2,9 +2,10 @@
 IF YOU DON'T FILL OUT THE FOLLOWING INFORMATION YOUR ISSUE MIGHT BE CLOSED WITHOUT INVESTIGATING
 -->
 ### Bug Report or Feature Request (mark with an `x`)
+```
 - [ ] bug report -> please search issues before submitting
 - [ ] feature request
-
+```
 
 ### Versions.
 <!--