docs: Add contributor (#280)

Co-authored-by: jan.silhan <[email protected]>

Author: rajzik

.all-contributorsrc

@@ -120,6 +120,17 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "rajzik",
+      "name": "Jan Šilhan",
+      "avatar_url": "https://avatars.githubusercontent.com/u/10364836?v=4",
+      "profile": "https://github.com/rajzik",
+      "contributions": [
+        "bug",
+        "code",
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -300,6 +300,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/ci-vamp"><img src="https://avatars.githubusercontent.com/u/116516277?v=4?s=100" width="100px;" alt="ci-vamp"/><br /><sub><b>ci-vamp</b></sub></a><br /><a href="https://github.com/fabien0102/openapi-codegen/issues?q=author%3Aci-vamp" title="Bug reports">🐛</a> <a href="https://github.com/fabien0102/openapi-codegen/commits?author=ci-vamp" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://twitter.com/oalanoliv"><img src="https://avatars.githubusercontent.com/u/4368481?v=4?s=100" width="100px;" alt="Alan Oliveira"/><br /><sub><b>Alan Oliveira</b></sub></a><br /><a href="https://github.com/fabien0102/openapi-codegen/commits?author=alan-oliv" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/Cellule"><img src="https://avatars.githubusercontent.com/u/4157103?v=4?s=100" width="100px;" alt="Michael &quot;Mike&quot; Ferris"/><br /><sub><b>Michael &quot;Mike&quot; Ferris</b></sub></a><br /><a href="https://github.com/fabien0102/openapi-codegen/commits?author=Cellule" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/rajzik"><img src="https://avatars.githubusercontent.com/u/10364836?v=4?s=100" width="100px;" alt="Jan Šilhan"/><br /><sub><b>Jan Šilhan</b></sub></a><br /><a href="https://github.com/fabien0102/openapi-codegen/issues?q=author%3Arajzik" title="Bug reports">🐛</a> <a href="https://github.com/fabien0102/openapi-codegen/commits?author=rajzik" title="Code">💻</a> <a href="https://github.com/fabien0102/openapi-codegen/commits?author=rajzik" title="Documentation">📖</a></td>
     </tr>
   </tbody>
 </table>