Fix another batch of spelling typos (#13915)

* Fix typos

* Remove repeated words

* Minor grammar fixes

samples/client/petstore/python-prior/docs/FakeApi.md

@@ -1103,7 +1103,7 @@ No authorization required
 
 | Status code | Description | Response headers |
 |-------------|-------------|------------------|
-**400** | Someting wrong |  -  |
+**400** | Something wrong |  -  |
 
 [[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to Model list]](../README.md#documentation-for-models) [[Back to README]](../README.md)
 

samples/client/petstore/python-prior/docs/StoreApi.md

@@ -154,7 +154,7 @@ This endpoint does not need any parameter.
 
 Find purchase order by ID
 
-For valid response try integer IDs with value <= 5 or > 10. Other values will generated exceptions
+For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions
 
 ### Example
 

samples/client/petstore/python-prior/petstore_api/api/store_api.py

@@ -400,7 +400,7 @@ class StoreApi(object):
     ):
         """Find purchase order by ID  # noqa: E501
 
-        For valid response try integer IDs with value <= 5 or > 10. Other values will generated exceptions  # noqa: E501
+        For valid response try integer IDs with value <= 5 or > 10. Other values will generate exceptions  # noqa: E501
         This method makes a synchronous HTTP request by default. To make an
         asynchronous HTTP request, please pass async_req=True
 

samples/client/petstore/python-prior/petstore_api/models/__init__.py

@@ -4,7 +4,7 @@
 # if you have many models here with many references from one model to another this may
 # raise a RecursionError
 # to avoid this, import only the models that you directly need like:
-# from from petstore_api.model.pet import Pet
+# from petstore_api.model.pet import Pet
 # or import this package, but before doing it, use:
 # import sys
 # sys.setrecursionlimit(n)

samples/client/petstore/python-prior/tests/test_api_client.py

@@ -210,7 +210,7 @@ class ApiClientTests(unittest.TestCase):
         result = self.api_client.sanitize_for_serialization(data)
         self.assertEqual(result, list_of_pet_dict)
 
-        # model with additional proerties
+        # model with additional properties
         model_dict = {'some_key': True}
         model = StringBooleanMap(**model_dict)
         result = self.api_client.sanitize_for_serialization(model)