📝 Update README, selected response status codes.

Author: Hassan-Elseoudy

README.md

@@ -190,6 +190,12 @@ You can log only selected methods by specifying `DRF_API_LOGGER_METHODS` in sett
 DRF_API_LOGGER_METHODS = ['GET', 'POST', 'DELETE', 'PUT']  # Default to empty list (Log all the requests).
 ```
 
+### Want to log only selected response status codes? (Optional)
+You can log only selected responses by specifying `DRF_API_LOGGER_STATUS_CODES` in settings.py.
+```python
+DRF_API_LOGGER_STATUS_CODES = ['200', '400', '404', '500']  # Default to empty list (Log all responses).
+```
+
 ### Want to see the API information in local timezone? (Optional)
 You can also change the timezone by specifying `DRF_API_LOGGER_TIMEDELTA` in settings.py.
 It won't change the Database timezone. It will still remain UTC or the timezone you have defined.