Merge pull request #188 from microsoft/bugfix/pipeline-pr-trigger

- adds a pr trigger to the pipeline now that it's used as a check

Author: baywet

.azure-pipelines/ci-build.yml

@@ -7,7 +7,10 @@ trigger:
   branches:
     include:
       - master
-pr: none
+pr:
+  branches:
+    include:
+      - master
 
 pool:
   name: Azure Pipelines
@@ -235,4 +238,4 @@ stages:
                 packagesToPush: '$(Pipeline.Workspace)/Nugets/Microsoft.OpenApi.OData.*.nupkg'
                 nuGetFeedType: external
                 publishFeedCredentials: 'OpenAPI Nuget Connection'
-      
+