Update help file command.

Author: Steve Ives

azure-pipelines.yml

@@ -49,7 +49,7 @@ jobs:
   - task: CmdLine@2
     displayName: 'Build help file'
     inputs:
-      script: '"C:\Program Files (x86)\HelpSmith\HelpSmith.exe" ..\..\Documentation\CodeGen.hsm /wh=WebHelp /nc'
+      script: '"C:\Program Files (x86)\HelpSmith\HelpSmith.exe" ..\..\Documentation\CodeGen.hsm /hh /nc'
 
   - task: VSBuild@1
     displayName: 'Build CodeGen solution and installer'