docs: Simplify the pull request template (azerothcore#16869)

* docs: Simplify the pull request template

* fix typo

* Update pull_request_template.md

* Update pull_request_template.md

* Update pull_request_template.md

pull_request_template.md

@@ -1,25 +1,39 @@
 <!-- First of all, THANK YOU for your contribution. -->
 
 ## Changes Proposed:
--  
--  
+This PR proposes changes to:
+-  [ ] Core (units, players, creatures, game systems).
+-  [ ] Scripts (bosses, spell scripts, creature scripts).
+-  [ ] Database (SAI, creatures, etc).
+
+If your pull request promotes complex changes that require a detailed explanation, please describe them in detail specifying what your solution is and what is it meant to address.
 
 ## Issues Addressed:
 <!-- If your fix has a relating issue, link it below -->
 - Closes 
 
 ## SOURCE:
 <!-- If you can, include a source that can strengthen your claim -->
+The changes have been validated through:
+- [ ] Live research (checked on live servers, e.g Classic WotLK, Retail, etc.)
+- [ ] Sniffs (remember to share them with the open source community!)
+- [ ] Video evidence, knowledge databases or other public sources (e.g forums, Wowhead, etc.)
+- [ ] The changes promoted by this pull request come partially or entirely from another project (cherry-pick). **Cherry-picks must be committed using the proper --author tag in order to be accepted, thus crediting the original authors, unless otherwise unable to be found**
 
 ## Tests Performed:
 <!-- Does it build without errors? Did you test in-game? What did you test? On which OS did you test? Describe any other tests performed -->
-- 
-- 
+This PR has been:
+- [ ] Tested in-game by the author.
+- [ ] Tested in-game by other community members/someone else other than the author/has been live on production servers.
+- [ ] This pull request requires further testing and may have edge cases to be tested.
 
 
 ## How to Test the Changes:
 <!-- Describe in a detailed step-by-step order how to test the changes -->
 
+- [ ] This pull request can be tested by following the reproduction steps provided in the linked issue
+- [ ] This pull request requires further testing. Provide steps to test your changes. If it requires any specific setup e.g multiple players please specify it as well.
+
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