docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -1878,6 +1878,7 @@ 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://github.com/yorkerhodes3"><img src="https://avatars.githubusercontent.com/u/17415717?v=4?s=100" width="100px;" alt="Yorke E. Rhodes III"/><br /><sub><b>Yorke E. Rhodes III</b></sub></a><br /><a href="#content-yorkerhodes3" title="Content">🖋</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/sandeepV2"><img src="https://avatars.githubusercontent.com/u/52043035?v=4?s=100" width="100px;" alt="Sandeep Belagavi"/><br /><sub><b>Sandeep Belagavi</b></sub></a><br /><a href="https://github.com/ethereum/ethereum-org-website/issues?q=author%3AsandeepV2" title="Bug reports">🐛</a></td>
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