docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1648,6 +1648,7 @@ 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://ilanolkies.com"><img src="https://avatars.githubusercontent.com/u/36084092?v=4?s=100" width="100px;" alt="Ilan"/><br /><sub><b>Ilan</b></sub></a><br /><a href="#content-ilanolkies" title="Content">🖋</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://mirror.xyz/umede.eth"><img src="https://avatars.githubusercontent.com/u/122288558?v=4?s=100" width="100px;" alt="umede"/><br /><sub><b>umede</b></sub></a><br /><a href="#content-umededoteth" title="Content">🖋</a></td>
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