Fix typo in "deploy multiple locales" section

Editor assessment

The subject pinpoints the fix — a typo in the deploy-multiple-locales section — so the reader knows the location and nature of the change without any diff. Type `docs` is correct; absent scope is fine for a named guide section. The body is minimal but purposeful: `Fixes #42540` links the correction to its reporting issue in valid `token #value` grammar, and `PR Close #42541` completes the trailers. No prose body is needed for a typo repair. Style hygiene is clean — imperative verb, no trailing period, short subject, no junk. A modest, precise, publishable example of a small documentation correction wired to its issue.