Update pull_request_template.md

Author: jackzhxng

.github/pull_request_template.md

@@ -1,7 +1,7 @@
 ### Summary
 [PLEASE REMOVE] Describe the goal of this PR and any add any relevant context.
 
-[PLEASE REMOVE] If this PR closes an issue, please add a `Closes #<issue-id>` line.
+[PLEASE REMOVE] If this PR closes an issue, please add a `Fixes #<issue-id>` line.
 
 [PLEASE REMOVE] If this PR introduces a fix or feature that should be the upcoming release notes, please add the following "Release notes: <area>" label.