chore: use real comments in the github issue template (mozilla#949)

Author: kumar303

.github/ISSUE_TEMPLATE.md ISSUE_TEMPLATE.md

@@ -2,11 +2,13 @@
 
 
 ### What is the current behavior?
-
-(If this is a bug, please include the exact steps to reproduce the problem, including the
-`web-ext` commands you ran. Do not include sensitive information like API secrets.
-Upload a text log created with the `--verbose` flag if possible.
-Upload a .zip file of your web extension source if necessary.)
+<!--
+* If this is a bug, please explain how to reproduce the problem and
+  include the `web-ext` commands you ran.
+* Do not include sensitive information like API secrets.
+* Upload a text log created with the verbose flag if possible.
+* Upload a zip file of your web extension source if necessary.
+-->
 
 
 ### What is the expected or desired behavior?