Refine PR Template (JabRef#13316)

Co-authored-by: Subhramit Basu <subhramit.bb@live.in>

Author: koppor

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,16 +1,17 @@
-Closes #_____
+Closes _____
+<!-- LINK THE ISSUE WITH THE "Closes" KEYWORD. Example: Closes https://github.com/JabRef/jabref/issues/13109 OR Closes #13109 -->
 
-In about one to three sentences, describe the changes you have made: what, where, why, ...
+<!-- In about one to three sentences, describe the changes you have made: what, where, why, ... (REPLACE THIS LINE) -->
 
 <!-- NOTE: If your work is not yet complete, please open a draft pull request. In that case, outline your intended next steps. Do you need feedback? Will you continue in parallel? ... -->
 
 ### Steps to test
 
-Describe how reviewers can test this fix/feature. Ideally, think of how you would guide a beginner user of Jabef to try out your change.
-You can add screenshots or videos (using [Loom](https://www.loom.com/) or by just adding .mp4 files).
+<!-- Describe how reviewers can test this fix/feature. Ideally, think of how you would guide a beginner user of Jabef to try out your change. -->
+<!-- You can add screenshots or videos (using Loom - https://www.loom.com or by just adding .mp4 files). -->
+<!-- (REPLACE THIS PARAGRAPH) -->
 
 <!-- YOU HAVE TO MODIFY THE ABOVE TEXT FIT YOUR PR. OTHERWISE, YOUR PR WILL BE CLOSED WITHOUT FURTHER COMMENT. -->
-<!-- LINK THE ISSUE WITH THE "Closes" KEYWORD. Example: Closes (link) OR Closes #12345 -->
 
 ### Mandatory checks
 

.github/workflows/on-pr-opened-updated.yml

@@ -41,9 +41,9 @@ jobs:
           ticketPrefix: '#'
           titleRegex: '^#(?<ticketNumber>\d+)'
           branchRegex: '^(?<ticketNumber>\d+)'
-          # Matches GitHub's closes/fixes/resolves #{number}, but does not match our example `Closes #12345` in PULL_REQUEST_TEMPLATE
+          # Matches GitHub's closes/fixes/resolves #{number}, but does not match our example `Closes #13109` in PULL_REQUEST_TEMPLATE
           # Also matches URLs that are wrapped in `<>`.
-          bodyRegex: '(?<action>fixes|closes|resolves|refs)\s+<?(?:https?:\/\/github\.com\/JabRef\/jabref\/issues\/)?#?(?<ticketNumber>(?!12345\b)\d+)>?'
+          bodyRegex: '(?<action>fixes|closes|resolves|refs)\s+<?(?:https?:\/\/github\.com\/JabRef\/jabref\/issues\/)?#?(?<ticketNumber>(?!13109\b)\d+)>?'
           bodyRegexFlags: 'i'
           outputOnly: true
       - run: echo "${{ steps.get_issue_number.outputs.ticketNumber }}"