docs: update README.md

Author: allcontributors[bot]

README.md

@@ -1113,6 +1113,7 @@ Bug fixes, new language support and tests are welcome. Please have a look at the
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       <td align="center" valign="top" width="14.28%"><a href="https://upleveled.io"><img src="https://avatars.githubusercontent.com/u/1935696?v=4?s=100" width="100px;" alt="Karl Horky"/><br /><sub><b>Karl Horky</b></sub></a><br /><a href="#code-karlhorky" title="Code">💻</a> <a href="#doc-karlhorky" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://math-atlas.vercel.app"><img src="https://avatars.githubusercontent.com/u/64682375?v=4?s=100" width="100px;" alt="Kelvin Soh"/><br /><sub><b>Kelvin Soh</b></sub></a><br /><a href="#code-kelvinsjk" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://www.1stg.me"><img src="https://avatars.githubusercontent.com/u/8336744?v=4?s=100" width="100px;" alt="JounQin"/><br /><sub><b>JounQin</b></sub></a><br /><a href="#code-JounQin" title="Code">💻</a></td>
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