Improve health check timeout documentation

[beyhan]

Improve the health checks timeout section with more specific information about how to set it. At the moment the CF CLI doesn't support health check timeout configuration as described in this issue and users get confused with the --invocation-timeout option supported by the CF CLI. I'm suggesting to make it more clear how the timeout could be configured via CF CLI and CF APIs.

[cf-gitbot]

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[anita-flegg]

@Gerg , do you have any suggestions for how to do this correctly? Thanks :)

[beyhan]

My suggestion is:
Is it by intention that cf set-health-check shouldn't support the timeout configuration because it is relevant when pushing an app? If yes, we can just put a note that it should be configured during push with cf push -t or in the manifest and set-health-check doesn't support it.

[anita-flegg]

@beyhan , have you had any update on this?

[beyhan]

Hi @anita-flegg,

I didn't get any feedback on the CLI issue but I will create in the next days a pr for the docs to add more details about this at least.

[anita-flegg]

Thanks, @beyhan