docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -524,6 +524,7 @@ Thanks goes to these wonderful people
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       <td align="center" valign="top" width="14.28%"><a href="https://noma.to"><img src="https://avatars.githubusercontent.com/u/6018732?v=4?s=100" width="100px;" alt="Ian Létourneau"/><br /><sub><b>Ian Létourneau</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=ianlet" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/brianlu2610"><img src="https://avatars.githubusercontent.com/u/68666483?v=4?s=100" width="100px;" alt="brianlu2610"/><br /><sub><b>brianlu2610</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=brianlu2610" title="Code">💻</a></td>
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