docs: fix keda links

[KaranbirSingh7]

Changelog

• small fix to point docs to keda-overview page

[prmerger-automator[bot]]

@KaranbirSingh7 : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[learn-build-service-prod[bot]]

Learn Build status updates of commit 878e9d7:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
articles/aks/concepts-scale.md	:white_check_mark:Succeeded

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[Jak-MS]

@Nickomang Can you review the proposed changes?

Important: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

label:"aq-pr-triaged"

@MicrosoftDocs/public-repo-pr-review-team

[schaffererin]

assign:schaffererin

[schaffererin]

assign-reviewer:schaffererin

[schaffererin]

sign-off

[prmerger-automator[bot]]

Invalid command: '#sign-off'. Only the assigned author of one or more file in this PR can sign off. @nickomang

[schaffererin]

Hi, @Jak-MS, this is good for sign off!

[Jak-MS]

taking approval from @schaffererin as sign off.