Fix formatting of turbopack configuration in page.mdx

[dipakrathod-tech]

Why:

Closes:

What's being changed (if available, include any code snippets, screenshots, or gifs):

Check off the following:

• I have reviewed my changes in staging, available via the View
  deployment link in this PR's timeline (this link will be available after
  opening the PR).

[changeset-bot]

⚠️ No Changeset found

Latest commit: 825b3f0

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
nextra	Error			Oct 2, 2025 11:51am
nextra-v2	Ready	Preview	Comment	Oct 2, 2025 11:51am

[vercel]

@dipakrathod-tech is attempting to deploy a commit to the Vercel Team on Vercel.

A member of the Team first needs to authorize it.