Testing notes

docs/docs/guides/testing.md

@@ -1,6 +1,6 @@
 # Testing
 
-**Django Ninja** provides a test client to make it easy to test your API.
+**Django Ninja** is fully compatible with standrad [django test client](https://docs.djangoproject.com/en/dev/topics/testing/tools/) , but also provides a test client to make it easy to test just APIs without middleware/url-resolver layer making tests run faster.
 
 To test the following API:
 ```python
@@ -40,4 +40,4 @@ class HelloTest(TestCase):
         client = NinjaTestClient(router)
         # request.company_id will now be set within the view
         response = client.get("/hello", company_id=1)
-```
+```