update azure-pipelines to test both windows and linux

Author: Mpdreamz

azure-pipelines.yml

@@ -1,22 +1,16 @@
-# ASP.NET Core
-# Build and test ASP.NET Core projects targeting .NET Core.
-# Add steps that run tests, create a NuGet package, deploy, and more:
-# https://docs.microsoft.com/azure/devops/pipelines/languages/dotnet-core
-
 trigger:
 - master
 
-pool:
-  vmImage: 'VS2017-Win2016'
-
-variables:
-  buildConfiguration: 'Release'
-
-
-steps:
-- task: DotNetCoreInstaller@0
-  inputs:
-    packageType: 'sdk'
-    version: '2.2.103'
-- script: build.bat canary
-  displayName: build and unit test
+jobs:
+- job: Linux
+  pool:
+    vmImage: 'ubuntu-16.04'
+  steps:
+  - script: ./build.sh test-one skipdocs
+    displayName: build and unit test
+- job: Windows
+  pool:
+    vmImage: 'vs2017-win2016'
+  steps:
+  - script: build.bat canary
+    displayName: build and unit test