Update PULL_REQUEST_TEMPLATE.md (#1892)

* Update PULL_REQUEST_TEMPLATE.md

* Update PULL_REQUEST_TEMPLATE.md

Adding hidden markdown

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Co-authored-by: MM <martina.marien@shopify.com>

* Update .github/PULL_REQUEST_TEMPLATE.md

Co-authored-by: Lucas Lacerda <37168033+LucasLacerdaUX@users.noreply.github.com>

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Co-authored-by: MM <martina.marien@shopify.com>
Co-authored-by: Lucas Lacerda <37168033+LucasLacerdaUX@users.noreply.github.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,6 @@
 **PR Summary:** 
 
-_Please include a short description (using non-technical terms, 1-2 sentences) about the changes you are introducing, what problem is being fixed and/or describe the benefit to merchants. This content will be used in our release notes for Dawn on [themes.shopify.com](https://themes.shopify.com/themes/dawn/styles/default#ReleaseNotes)._
+<!-- Please include a short description (using non-technical terms, 1-2 sentences) about the changes you are introducing, what problem is being fixed and/or describe the benefit to merchants. This content will be used in our release notes for Dawn on [themes.shopify.com](https://themes.shopify.com/themes/dawn/styles/default#ReleaseNotes). -->
 
 
 **Why are these changes introduced?**
@@ -18,17 +18,19 @@ Fixes #0.
 | 1 |   |   |   |   |
 
 **Testing steps/scenarios**
-- [ ] _List all the testing tasks that applies to your fix and help peers to review your work._
+<!-- List all the testing tasks that applies to your fix to help peers review your work. -->
+- [ ] Step 1
 
 **Demo links**
-_Please include a link to a demo store that includes preconfigured sections and settings to allow reviewers to easily test the features you are working on._
+<!-- Please include a link to a demo store that includes preconfigured sections and settings to allow reviewers to easily test the features you are working on. -->
 
 - [Store](url)
 - [Editor](url)
 
 **Checklist**
 - [ ] Added PR summary for [release notes](https://themes.shopify.com/themes/dawn/styles/default#ReleaseNotes)
-- [ ] Notified the [help.shopify.com](https://help.shopify.com) team about updates to theme settings (current contact: Kimli)
+- [ ] Requested review from UX (Only for changes that are affecting the experience or perceivable visual details)
+- [ ] Created a ticket for the [help.shopify.com](https://help.shopify.com) documentation team about updates to theme settings. (Internal-only task)
 - [ ] Followed [theme code principles](https://github.com/Shopify/dawn/blob/main/.github/CONTRIBUTING.md#theme-code-principles)
 - [ ] Linted with [Theme Check](https://github.com/Shopify/theme-check)
 - [ ] Tested on [mobile](https://shopify.dev/themes/store/requirements#mobile-browser-requirements)