fix: update/generate new docs after fixing/tweaking them.

Author: joshorr

README.md

@@ -108,7 +108,7 @@ try:
     # `some_field` is a required field.
     MyModel()
 except ValidationError as e:
-    print(f'Pydantic will state `some_field` + `value` are required: {e}')
+    print(f'Pydantic will state `some_field` is required: {e}')
 else:
     raise Exception('Pydantic should have required `some_field`.')
 ```

tests/test_doc_examples.py

@@ -180,6 +180,6 @@ class MyModel(PartialModel):
         # `some_field` is a required field.
         MyModel()
     except ValidationError as e:
-        print(f'Pydantic will state `some_field` + `value` are required: {e}')
+        print(f'Pydantic will state `some_field` is required: {e}')
     else:
         raise Exception('Pydantic should have required `some_field`.')