incorporating PR feedback

com.unity.perception/CHANGELOG.md

 
 ### Upgrade Notes
 
+All appearances of the term `KeyPoint` have been renamed to `Keypoint`. Therefore the following steps will be required after upgrading to this version:
+* If you have code that relies on any renamed types or names, alter your code to reflect the new names.
+* If you are using custom `KeypointTemplate` assets besides the provided `CocoKeypointTemplate`, open those assets in a text editor and change the `keyPoints:` line to `keypoints:`, then save the file.
+
 ### Known Issues
 
 ### Added
-Renamed all types and members named "KeyPoint" to "Keypoint"
+Renamed all appearances of the term `KeyPoint` within types and names to `Keypoint`.
 
 ### Deprecated
 

com.unity.perception/Runtime/GroundTruth/Labelers/KeyPointLabeler.cs

         protected override void Setup()
         {
             if (idLabelConfig == null)
-                throw new InvalidOperationException($"{GetType().Name}'s idLabelConfig field must be assigned");
+                throw new InvalidOperationException($"{nameof(KeypointLabeler)}'s idLabelConfig field must be assigned");
 
             m_AnnotationDefinition = DatasetCapture.RegisterAnnotationDefinition("keypoints", new []{TemplateToJson(activeTemplate)},
                 "pixel coordinates of keypoints in a model, along with skeletal connectivity data", id: new Guid(annotationId));