Update PULL_REQUEST_TEMPLATE.md (Azure#19020)

* Update PULL_REQUEST_TEMPLATE.md

* Update PULL_REQUEST_TEMPLATE.md

Author: ruowan

.github/PULL_REQUEST_TEMPLATE.md

@@ -39,7 +39,7 @@ If any further question about AME onboarding or validation tools, please view th
 > - All removals
 
 Otherwise your PR may be subject to ARM review requirements. Complete the following:
-- [ ] Check this box if any of the following apply to the PR so that label "WaitForARMFeedback" will be added automatically to begin ARM API Review. Failure to comply may result in delays to the manifest.
+- [ ] Check this box if any of the following appy to the PR so that the label "ARMReview" and "WaitForARMFeedback" will be added by bot to kick off ARM API Review.  Missing to check this box in the following scenario may result in delays to the ARM manifest review and deployment.
   - Adding a new service
   - Adding new API(s)
   - Adding a new API version