Fix broken Tests link in contributing/README.md (#62091)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: heiskr

contributing/README.md

@@ -14,6 +14,6 @@ Here, you'll find additional information that might be helpful as you work on a
 - [troubleshooting](./troubleshooting.md) - some help for troubleshooting failed and stalled status checks
 - [Reusables](https://docs.github.com/en/contributing/writing-for-github-docs/creating-reusable-content#about-reusables) - We create reusables and call them from articles to help us keep content that is used in multiple places up to date.
 - [Variables](https://docs.github.com/en/contributing/writing-for-github-docs/creating-reusable-content#about-variables) - We use variables the same way we use reusables. Variables are for short strings of reusable text.
-- [Tests](/tests/README.md) - We use tests to ensure content will render correctly on the site. Tests run automatically in your PR, and sometimes it's also helpful to run them locally.
+- [Tests](/src/tests/README.md) - We use tests to ensure content will render correctly on the site. Tests run automatically in your PR, and sometimes it's also helpful to run them locally.
 
 You can also read the READMEs in the `src/` directory to learn more about the features of the docs site.