* Update service-access-application-cluster.md
Fix code snippet formatting and indentation in ordered list (#8698)
* Fixes code formatting using code fences
Here's a pass with code fences. It seems to work well, and I indented the code fences in the source for readability, even though it wasn't needed for proper indentation in the rendered output.
I wasn't able to use code fences and get the text "The response to a successful request is a hello message:" on its own line. I can achieve that using indentation, but for consistency's sake I used the code fences and placed the text with the paragraph above it.
* Adds `shell` to the code fences