MIGRATING.md in google-cloud-kms-2.1.2 vs MIGRATING.md in google-cloud-kms-2.2.0

- old
+ new

@@ -266,10 +266,10 @@ ``` ### Handling Errors The client reports standard -{file:https://github.com/grpc/grpc/blob/master/doc/statuscodes.md gRPC error codes} +[gRPC error codes](https://github.com/grpc/grpc/blob/master/doc/statuscodes.md) by raising exceptions. In older releases, these exceptions were located in the `Google::Gax` namespace and were subclasses of the `Google::Gax::GaxError` base exception class, defined in the `google-gax` gem. However, these classes were different from the standard exceptions (subclasses of `Google::Cloud::Error`) thrown by other client libraries such as `google-cloud-storage`.