chore: small fixes

[dutterbutter]

What :computer:

• First thing updated with this PR
• Second thing updated with this PR
• Third thing updated with this PR

Why :hand:

• Reason why first thing was added to PR
• Reason why second thing was added to PR
• Reason why third thing was added to PR

Evidence :camera:

Include screenshots, screen recordings, or console output here demonstrating that your changes work as intended

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 0629abd):

https://zksync-docs-staging-5eb09--pr71-db-quick-fix-hlpgpnf3.web.app

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[dutterbutter]

@itsacoyote entirely aesthetics. I'd rather have better SEO so we can close if you think we will lose ground there.