docs(suites): fix broken links in docs

[MacMacky]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/nestjs/docs.nestjs.com/blob/master/CONTRIBUTING.md

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Docs
• Other... Please describe:

What is the current behavior?

The testing documentation links in the Suites Recipe didn't work or redirect to anything

Issue Number: N/A

What is the new behavior?

it fixes the links and it redirects to the testing documentation

Screen.Recording.2026-04-04.083503.mp4

Does this PR introduce a breaking change?

• Yes
• No

Other information

[kamilmysliwiec]

That's odd, /fundamentals/testing is supposed to work fine. Instead of checking those links to absolute urls, we should investigate why md compiler doesn't correctly convert them to internal refs anymore

[MacMacky]

@kamilmysliwiec i've updated the PR for the fix, please review when you get a chance 🙏🏽 , thank you

[kamilmysliwiec]

LGTM