docs: add JounQin as a contributor for code (#145)

* docs: update README.md

* docs: update .all-contributorsrc

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -26,6 +26,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "JounQin",
+      "name": "JounQin",
+      "avatar_url": "https://avatars.githubusercontent.com/u/8336744?v=4",
+      "profile": "https://www.1stg.me",
+      "contributions": [
+        "code"
+      ]
     }
   ]
 }

README.md

@@ -1113,6 +1113,7 @@ Bug fixes, new language support and tests are welcome. Please have a look at the
     <tr>
       <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>
     </tr>
   </tbody>
 </table>