Better way to opt out of CI.

Author: Steve Ives

azure-pipelines.yml

@@ -3,10 +3,12 @@
 # Add steps that publish symbols, save build artifacts, and more:
 # https://docs.microsoft.com/azure/devops/pipelines/apps/windows/dot-net
 
-trigger:
-  branches:
-    exclude:
-      - master
+# Use CI, run the pipeline on each commit to the master branch
+#trigger:
+#- master
+
+# Opt out of CI, run the pipeline manually
+trigger: none
 
 jobs:
 - job: CodeGenBuild