Clicking the "Next ->" button on `/react-testing-library/api` redirects to a page that doesn't exist

[mrantry]

Describe the bug
Link to FAQ from API page needs to be updated.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://testing-library.com/docs/react-testing-library/api
2. Scroll to the bottom
3. Click on the "Next ->" button at the bottom of the page
4. See error redirecting to https://testing-library.com/docs/dom-testing-library/react-testing-library/migrate-from-enzyme

Expected behavior
"Next ->" should redirect to "FAQ". Also, the button text of "Next ->" should update to "FAQ ->"

Desktop:

• OS: MacOS 10.15.5
• Browser: Chrome Version 85.0.4183.83 (Official Build) (64-bit)

[nickserv]

The Migrate from Enzyme link was broken, now there's a corrected link in the sidebar and you can press next/previous through it.