docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -595,7 +595,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://davemackey.net/"><img src="https://avatars.githubusercontent.com/u/8009774?v=4?s=100" width="100px;" alt="Dave Mackey"/><br /><sub><b>Dave Mackey</b></sub></a><br /><a href="#content-davidshq" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Siegrift"><img src="https://avatars.githubusercontent.com/u/22679154?v=4?s=100" width="100px;" alt="Emanuel Tesař"/><br /><sub><b>Emanuel Tesař</b></sub></a><br /><a href="#content-Siegrift" title="Content">🖋</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/DeFiDude"><img src="https://avatars.githubusercontent.com/u/59237470?v=4?s=100" width="100px;" alt="DeFiDude"/><br /><sub><b>DeFiDude</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/issues?q=author%3ADeFiDude" title="Bug reports">🐛</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="http://austingriffith.com"><img src="https://avatars.githubusercontent.com/u/2653167?v=4?s=100" width="100px;" alt="Austin Griffith"/><br /><sub><b>Austin Griffith</b></sub></a><br /><a href="#content-austintgriffith" title="Content">🖋</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://austingriffith.com"><img src="https://avatars.githubusercontent.com/u/2653167?v=4?s=100" width="100px;" alt="Austin Griffith"/><br /><sub><b>Austin Griffith</b></sub></a><br /><a href="#content-austintgriffith" title="Content">🖋</a> <a href="#tool-austintgriffith" title="Tools">🔧</a> <a href="#maintenance-austintgriffith" title="Maintenance">🚧</a></td>
     </tr>
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://chasemanning.co.nz"><img src="https://avatars.githubusercontent.com/u/53957795?v=4?s=100" width="100px;" alt="Chase Manning"/><br /><sub><b>Chase Manning</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/issues?q=author%3Achase-manning" title="Bug reports">🐛</a> <a href="#content-chase-manning" title="Content">🖋</a></td>