message: Clarify `unregisterations` typo
diff: @@ -166,6 +166,9 @@ export interface Unregistration {
  }
  export interface UnregistrationParams {
  + // Should correctly be named `unregistrations`. However
  + // this is a breaking change which has to wait for
  + // protocol version 4.0.
  unregisterations: Unregistration[];
  }
  