docs: update README.md

Author: allcontributors[bot]

README.md

@@ -432,6 +432,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
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       <td align="center" valign="top" width="14.28%"><a href="https://minddistrict.de"><img src="https://avatars.githubusercontent.com/u/386619?v=4?s=100" width="100px;" alt="Michael Howitz"/><br /><sub><b>Michael Howitz</b></sub></a><br /><a href="https://github.com/EndBug/add-and-commit/commits?author=icemac" title="Documentation">📖</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/tomas-kovanda"><img src="https://avatars.githubusercontent.com/u/70589885?v=4?s=100" width="100px;" alt="tomas-kovanda"/><br /><sub><b>tomas-kovanda</b></sub></a><br /><a href="https://github.com/EndBug/add-and-commit/commits?author=tomas-kovanda" title="Documentation">📖</a></td>
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