Update the folder to copy markdown help files

Author: qinezh

appveyor.yml

@@ -31,6 +31,6 @@ test: off
 on_success:
   - git clone -q --branch=%target_branch% %content_repo% %TEMP%\Azure
   - cd %TEMP%\Azure
-  - ps: ls c:\projects\_output -dir | % { copy $_.FullName (ls -dir | select -First 1) -Recurse -Force }
+  - ps: ls c:\projects\_output -dir | % { copy $_.FullName . -Recurse -Force }
   - git add -A
   - git diff --quiet --exit-code --cached || git commit -m "Sync docs from source code repo to content repo." && git push origin %target_branch% && appveyor AddMessage "Content Updated"