docs: update README.md [skip ci]

Author: allcontributors[bot]

README.md

@@ -474,6 +474,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
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     <td align="center"><a href="https://github.com/Turreted"><img src="https://avatars2.githubusercontent.com/u/41593269?v=4" width="100px;" alt=""/><br /><sub><b>Turreted</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=Turreted" title="Code">💻</a></td>
+    <td align="center"><a href="http://ibtida.me"><img src="https://avatars1.githubusercontent.com/u/33792969?v=4" width="100px;" alt=""/><br /><sub><b>Ibtida Bhuiyan</b></sub></a><br /><a href="https://github.com/ExpDev07/coronavirus-tracker-api/commits?author=ibhuiyan17" title="Code">💻</a></td>
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