docs: correct browserslist behavior docs

[Char2sGu]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular/blob/main/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.io application / infrastructure changes
• Other... Please describe:

What is the current behavior?

Wrong/Incomplete documentation, as mentioned in the following issue.

Issue Number: #56020

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

[google-cla]

Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

View this failed invocation of the CLA check for more information.

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[alan-agius4]

LGTM, just one NIT

[Char2sGu]

Updated @alan-agius4

[alan-agius4]

@Char2sGu can you please sign the CLA and also squash the commit? Thanks.

[Char2sGu]

Hey @alan-agius4 I've signed the CLA, but I believe it can be more convenient to squash the commits on merge. The edits were made via GitHub Web.

[alan-agius4]

@Char2sGu, let me create a fixup commit message for you.

[pkozlowski-opensource]

This PR was merged into the repository by commit 400b47e.

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