Merge pull request #67 from process0/process0-model-docstring

Copy pydantic model docstring to graphene model

Author: necaris

graphene_pydantic/objecttype.py

@@ -86,6 +86,9 @@ def __init_subclass_with_meta__(
         if not registry:
             registry = get_global_registry(PydanticObjectType)
 
+        if not cls.__doc__:
+            cls.__doc__ = model.__doc__
+
         pydantic_fields = yank_fields_from_attrs(
             construct_fields(
                 obj_type=cls,