improve markdown formatting in docs

[catreadme]

small fix to improve the markdown formatting for the page https://kubernetes.io/docs/reference/kubernetes-api/authentication-resources/service-account-v1/

[k8s-ci-robot]

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[linux-foundation-easycla]

• ✅login: catreadme / (dcb0d6e)

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[shannonxtreme]

This file is generated from the Kubernetes code, so you can't edit the text directly. There's instructions in a comment at the top of the file that'll show you how to edit upstream, if you're interested!

[Arhell]

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: dea81f8879e870e53b6ff3441cad9523761c33b2

[shannonxtreme]

Just preventing an unnecessary merge

/hold

[dipesh-rawat]

Closing this PR as it attempts to make changes to auto-generated page.

Refer #46307 (comment)

/close

[k8s-ci-robot]

@dipesh-rawat: Closed this PR.

In response to this:

Closing this PR as it attempts to make changes to auto-generated page.

Refer #46307 (comment)

/close

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