don't trigger normal release with documentation

azure-pipelines.yml

@@ -6,7 +6,14 @@
 pr: none
 
 trigger:
-  - master
+  branches:
+    include:
+      - master
+  paths:
+    exclude:
+      - docs
+      - packages/documentation
+      - README.md
 
 pool:
   vmImage: 'Ubuntu-16.04'