docs: update README.md

README.md

@@ -74,6 +74,13 @@ KARST is an open-source software licensed under the [MIT](https://github.com/hor
 <!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
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+<table>
+  <tbody>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="http://mubarak23.github.io/"><img src="https://avatars.githubusercontent.com/u/7858376?v=4?s=100" width="100px;" alt="Mubarak Muhammad Aminu"/><br /><sub><b>Mubarak Muhammad Aminu</b></sub></a><br /><a href="#code-mubarak23" title="Code">💻</a></td>
+    </tr>
+  </tbody>
+</table>
 
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