Fix link to homeserver pricing page

[hughns]

This must have been missed in the original review of #2805

✔️ Checklist

• Check for common mistakes:
  • Wrap plain URLs in <> to linkify them (learn more).
  • Use the right level of headings: The page title will use a level 1 headings, so your headings should use level 2 and below.
  • Use internal links: when linking to another page on https://matrix.org, use absolute [label](/target) or relative [label](subpage) links.
• For blog posts:
  • Verify the date and post ordering on the /blog page, especially for multiple posts on the same day. Prefer UTC format, e.g. 2025-12-01T14:00:00Z for Dec 1st, 2025, 2pm UTC.
  • Set the correct author and category. Browse existing ones at https://matrix.org/author/ and https://matrix.org/category/ to match them.
• Let us know if you are contributing in a specific role, such as on behalf of an organisation or team, for example.
• Let us know if your PR is time-sensitive in any way.
• Mention any issues related to the PR. Use GitHub keywords as appropriate.
• Your individual commits or pull request is signed off.

Signed-off-by: Hugh Nimmo-Smith hughns@element.io

[cloudflare-workers-and-pages]

Deploying matrix-website with    Cloudflare Pages

Latest commit:	7db937f
Status:	✅  Deploy successful!
Preview URL:	https://0293a798.matrix-website.pages.dev
Branch Preview URL:	https://hughns-fix-bad-pricing-link.matrix-website.pages.dev

View logs

[HarHarLinks]

Thanks, Hugh!

I'm not marking as change request as to not block this on the legal process, but probably the heading should be 7.2 instead of 7.2.. If it's possible to change it with quick turnaround, feel free to.

[HarHarLinks]

Oh, well.