Error in Rollup section

In the Rollup section, a section is written:
For a complete setup example see this gist.
And the word /* see this gist. */
Link to a restricted page
This limitation causes problems in teaching. Please change to another type.
Link address:
https://gist.github.com/Rich-Harris/cb14f4bc0670c47d00d191565be36bf0

The error I receive:

This secret gist has been disabled.
It appears your account may be based in a U.S.-sanctioned region. As a result, due to U.S. trade controls law restrictions, we are unable to provide private repository services and paid services for your account. GitHub has preserved, however, your access to certain free services for public repositories. If your account has been flagged in error, and you are not located in or resident in a sanctioned region, please file an appeal. Please read about GitHub and Trade Controls for more information.

Open the Rollup section of the React performance documentation and inspect the linked Rich Harris gist. Replace the restricted gist reference with an accessible alternative, then verify that the section no longer directs readers to the disabled page.