[FEAT] Autogenerate wasmcloud reference documentation on wasmcloud release

[brooksmtownsend]

The wasmcloud reference docs page is generated by using wasmcloud --help-markdown which automatically documents all subcommands, flags and environment variables for the wash CLI. Currently, though, we have to do this manually and copy the CLI reference back to this page. It would be great to augment the action in the wasmCloud repository to run a workflow here once a new version of wasmcloud is released, which docs maintainers can review and approve for quick updates.

Similar to #797

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. If this has been closed too eagerly, please feel free to tag a maintainer so we can keep working on the issue. Thank you for contributing to wasmCloud!