Update botbuilder-js-daily.yml for Azure Pipelines

Added comment about Service Connection

build/yaml/botbuilder-js-daily.yml

@@ -10,6 +10,7 @@ variables:
   Packaging.EnableSBOMSigning: true
   YARN_CACHE_FOLDER: $(Pipeline.Workspace)/.yarn
 #  SDK_JS_org_registry_Url: define this in Azure
+#  SDK_JS_org Service Connection: PAT in ConversationalAI with scope Packaging
 
 steps:
 - template: templates/build.yml