Update ISSUE_TEMPLATE.md

Author: nedtwigg

ISSUE_TEMPLATE.md

@@ -1,8 +1,10 @@
-If you are submitting a bug, please include the following:
+If you are submitting a **bug**, please include the following:
 
 - [ ] summary of problem
 - [ ] gradle version
 - [ ] spotless version
 - [ ] operating system and version
 - [ ] copy-paste your full Spotless configuration block(s), and a link to a public git repo that reproduces the problem if possible
 - [ ] copy-paste the full content of any console errors emitted by `gradlew spotless[Apply/Check] --stacktrace`
+
+If you're just submitting a feature request or question, no need for the above.