Fix a typo in Academic Overview page

[0xgouda]

Summary

Fix on-the-fy in https://clickhouse.com/docs/academic_overview#3-1-on-disk-format to be on-the-fly

Checklist

• Delete items not relevant to your PR
• URL changes should add a redirect to the old URL via https://github.com/ClickHouse/clickhouse-docs/blob/main/docusaurus.config.js
• If adding a new integration page, also add an entry to the integrations list here: https://github.com/ClickHouse/clickhouse-docs/blob/main/docs/integrations/index.mdx

closes: #4643

[vercel]

@0xgouda is attempting to deploy a commit to the ClickHouse Team on Vercel.

A member of the Team first needs to authorize it.

[0xgouda]

Also, may I ask, what is the difference between this repo and the docs/ folder in the main ClickHouse repo?

[vercel]

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Project	Deployment	Preview	Comments	Updated (UTC)
clickhouse-docs	Ready	Preview		Oct 27, 2025 8:34am

2 Skipped Deployments

Project	Deployment	Preview	Comments	Updated (UTC)
clickhouse-docs-ru	Ignored	Preview		Oct 27, 2025 8:34am
clickhouse-docs-zh	Ignored	Preview		Oct 27, 2025 8:34am

[Blargian]

Also, may I ask, what is the difference between this repo and the docs/ folder in the main ClickHouse repo?

Hi @0xgouda, thank you for contributing! The docs folder in the main ClickHouse repo contains mainly reference documentation. This one contains all the guides, tutorials etc. Why two repos? I'm not actually sure, happened long before I joined. I will probably end up moving this repo back into the main repo eventually as it will be more convenient.