added pipeline status to README (#310)

README.md

@@ -7,6 +7,14 @@ Cross-platform performance benchmarking and testing framework for .NET applicati
 
 NBench is designed for .NET developers who need to care about performance and want the ability to "unit test" their application's performance just like [XUnit](https://github.com/xunit/xunit) or [NUnit](http://nunit.org/) tests their application code.
 
+## Build Status
+
+| Stage             | Status                                                                                                                                                                                                                                   |
+|-------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Windows Tests     | [![Build Status](https://dev.azure.com/petabridge/NBench/_apis/build/status/NBench%20PR%20Validation?branchName=dev&jobName=Windows%20Tests)](https://dev.azure.com/petabridge/NBench/_build/latest?definitionId=115&branchName=dev)     |
+| Integration Tests | [![Build Status](https://dev.azure.com/petabridge/NBench/_apis/build/status/NBench%20PR%20Validation?branchName=dev&jobName=Integration%20Tests)](https://dev.azure.com/petabridge/NBench/_build/latest?definitionId=115&branchName=dev) |
+| NuGet Pack        | [![Build Status](https://dev.azure.com/petabridge/NBench/_apis/build/status/NBench%20PR%20Validation?branchName=dev&jobName=NuGet%20Pack)](https://dev.azure.com/petabridge/NBench/_build/latest?definitionId=115&branchName=dev)        |
+
 ## Documentation
 To learn more, please read [the official NBench documentation](https://nbench.io).