[vi] Localize for Mutual Transport Layer Security (mTLS) concept

[thuanpham582002]

Describe your changes

Add Vietnamese translation for Mutual Transport Layer Security (mTLS) concept

Related issue number or link (ex: resolves #issue-number)

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• This PR does not contain plagiarism
  • don’t copy other people’s work unless you are quoting and contributing it to them.
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[thuanpham582002]

/cc @ntheanh201

[ntheanh201]

Hi @thuanpham582002 anh có mấy góp ý, em xem có hợp lý không nhé

[Okabe-Junya]

Thank you for your contribution!

From a localization perspective, we require at least two approvals.
we welcome as many reviews as possible, thanks!

[ntheanh201]

/cc @thaomike review PR của Thuận em nhé

[thuanpham582002]

@ntheanh201 i've update following your review

[ntheanh201]

/lgtm

[thaomike]

/lgtm

[Okabe-Junya]

Thanks, let me merge as a maintainer!

[Okabe-Junya]

Sorry for the nit comment, but since cncf/glossary isn't a Kubernetes repository, bot (Prow) commands like /lgtm won't trigger any automation.

If you think "LGTM", please provide an approval in the GitHub review like this #3471 (review)

Again, thank you for all your contributions!!