docs: update README.md

Author: allcontributors[bot]

README.md

@@ -297,6 +297,7 @@ Thanks goes to these people ([emoji key][emojis]):
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     <td align="center"><a href="https://github.com/Tismas"><img src="https://avatars2.githubusercontent.com/u/13601275?v=4" width="100px;" alt=""/><br /><sub><b>Adam</b></sub></a><br /><a href="https://github.com/testing-library/dom-testing-library/commits?author=Tismas" title="Code">💻</a> <a href="https://github.com/testing-library/dom-testing-library/commits?author=Tismas" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/balavishnuvj"><img src="https://avatars3.githubusercontent.com/u/13718688?v=4" width="100px;" alt=""/><br /><sub><b>balavishnuvj</b></sub></a><br /><a href="https://github.com/testing-library/dom-testing-library/commits?author=balavishnuvj" title="Code">💻</a></td>
+    <td align="center"><a href="https://chriscolborne.com"><img src="https://avatars2.githubusercontent.com/u/101371?v=4" width="100px;" alt=""/><br /><sub><b>Chris Colborne</b></sub></a><br /><a href="https://github.com/testing-library/dom-testing-library/commits?author=zorfling" title="Code">💻</a></td>
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