Updated readme
Updated readme with link to badge of build for master branch
This repository will provide examples and best practices for building NLP systems, provided as Jupyter notebooks.
-[![Build Status](https://dev.azure.com/best-practices/nlp/_apis/build/status/unit-test-staging?branchName=staging)](https://dev.azure.com/best-practices/nlp/_build/latest?definitionId=21&branchName=staging)
+[![Build Status](https://dev.azure.com/best-practices/nlp/_apis/build/status/unit-test-master?branchName=master)](https://dev.azure.com/best-practices/nlp/_build/latest?definitionId=22&branchName=master)
## Planning etc documents
