Makefile testpypi change

Makefile

@@ -6,4 +6,7 @@ clean:
 
 build:
 	python3 setup.py sdist bdist_wheel
-	echo dialogflowpy_webhook module has been successfully built. It is available in the dist directory
+	echo dialogflowpy_webhook module has been successfully built. It is available in the dist directory
+
+testupload:
+	python3 -m twine upload --repository testpypi dist/*

README.md

@@ -1,4 +1,6 @@
 # dialogflowpy-webhook
+[![Documentation Status](https://readthedocs.org/projects/dialogflowpy-webhook/badge/?version=latest)](https://dialogflowpy-webhook.readthedocs.io/en/latest/?badge=latest)
+
 A Python module for parsing and creating Requests and Responses of Dialogflow Fulfillment Library. The [Dialogflow Fulfillment Library](https://cloud.google.com/dialogflow/docs/fulfillment-overview) allows you to connect natural language understanding and processing to your own system. Using Fulfillment, you can surface commands and information from your services to your users through a natural conversational interface.
 
 This dialogflowpy-webhook module is intended to help build Python Dialogflow Fulfillment for multiple  [integrations](https://cloud.google.com/dialogflow/docs/integrations/)  including Google Assistant, Facebook and Telegram. It is expected to work for Slack and Line as well.