Update README.md

Author: a2435191

README.md

@@ -39,4 +39,5 @@ class Test(PaamBase):
 
 ## Caveats (all planned to be fixed in future release)
 * The type of any variable "annotated" with `GET`, `SET`, or `DEL` is `_PropertyAccessModifierBase`. This means `mypy` support and IDE type hinting are most likely broken.
-* No tests
+* No tests
+* Error messages currently only show owner class