Fix client multi-interface example

[cnaples79]

Summary

• remove server bootstrap flag from client multi-interface example
• clarify that client agents should not be bootstrapped

Testing

• not run (docs-only change)

Fixes #18523

[aimeeu]

Hi @cnaples79. Thanks for pointing this out. The docs content moved to the web-unified-docs repo in November - refer to note on the website README). The noticed was added to all the files but not to partials.

I can recreate this PR in the web-unified-repo, if you don't wish to do that yourself. Let me know how you want to proceed.

[github-actions]

This pull request has been automatically flagged for inactivity because it has not been acted upon in the last 60 days. It will be closed if no new activity occurs in the next 30 days. Please feel free to re-open to resurrect the change if you feel this has happened by mistake. Thank you for your contributions.

[github-actions]

Closing due to inactivity. If you feel this was a mistake or you wish to re-open at any time in the future, please leave a comment and it will be re-surfaced for the maintainers to review.