added Azure Pipelines badge to the repo

Author: maxkazmsft

README.md

@@ -8,6 +8,8 @@ description: "Add 150 character max description"
 urlFragment: "update-this-to-unique-url-stub"
 ---
 
+[![Build Status](https://dev.azure.com/best-practices/deepseismic/_apis/build/status/microsoft.DeepSeismic?branchName=master)](https://dev.azure.com/best-practices/deepseismic/_build/latest?definitionId=108&branchName=master)
+
 # Official Microsoft Sample
 
 <!--