Add note on SemanticsPage to PR template

.github/PULL_REQUEST_TEMPLATE.md

@@ -23,7 +23,7 @@ Implements #
 ### Additions made ###
 <!-- List all the additions made here, example:
 
- - Adds `Thickness Padding { get; }` to the `ILabel` interface
+- Adds `Thickness Padding { get; }` to the `ILabel` interface
 - Adds Padding property map to LabelHandler
 - Adds Padding mapping methods to LabelHandler for Android and iOS
 - Adds extension methods to apply Padding on Android/iOS
@@ -52,10 +52,11 @@ Implements #
 - [ ] Implements basic property tests in DeviceTests
 
 #### Does this PR touch anything that might affect accessibility?
+- [ ] Does this PR introduce a new control? (If yes, add an example using SemanticProperties to the SemanticsPage)
 - [ ] APIs that modify focusability?
 - [ ] APIs that modify any text property on a control?
 - [ ] Does this PR modify view nesting or view arrangement in anyway?
 - [ ] Is there the smallest possibility that your PR will change accessibility? 
 - [ ] I'm not sure, please help me
 
-If any of the above checkboxes apply to your PR then the PR will need to provide testing to demonstrate that accessibility still works. 
+If any of the above checkboxes apply to your PR, then the PR will need to provide testing to demonstrate that accessibility still works.