docs: add sebastian-palma as a contributor (#54)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -40,7 +40,8 @@
       "avatar_url": "https://avatars2.githubusercontent.com/u/11888191?v=4",
       "profile": "https://github.com/sebastian-palma",
       "contributions": [
-        "test"
+        "test",
+        "code"
       ]
     }
   ],

README.md

@@ -41,7 +41,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://www.jamescrowley.net"><img src="https://avatars1.githubusercontent.com/u/509533?v=4" width="100px;" alt=""/><br /><sub><b>James Crowley</b></sub></a><br /><a href="https://github.com/asyncapi/html-template/commits?author=jamescrowley" title="Code">💻</a> <a href="https://github.com/asyncapi/html-template/issues?q=author%3Ajamescrowley" title="Bug reports">🐛</a></td>
     <td align="center"><a href="https://waleedashraf.me/"><img src="https://avatars0.githubusercontent.com/u/8335457?v=4" width="100px;" alt=""/><br /><sub><b>Waleed Ashraf</b></sub></a><br /><a href="https://github.com/asyncapi/html-template/commits?author=WaleedAshraf" title="Code">💻</a> <a href="https://github.com/asyncapi/html-template/issues?q=author%3AWaleedAshraf" title="Bug reports">🐛</a></td>
     <td align="center"><a href="https://deltaeight.de"><img src="https://avatars1.githubusercontent.com/u/19175262?v=4" width="100px;" alt=""/><br /><sub><b>Julian Rabe</b></sub></a><br /><a href="https://github.com/asyncapi/html-template/commits?author=schw4rzlicht" title="Code">💻</a></td>
-    <td align="center"><a href="https://github.com/sebastian-palma"><img src="https://avatars2.githubusercontent.com/u/11888191?v=4" width="100px;" alt=""/><br /><sub><b>Sebastián</b></sub></a><br /><a href="https://github.com/asyncapi/html-template/commits?author=sebastian-palma" title="Tests">⚠️</a></td>
+    <td align="center"><a href="https://github.com/sebastian-palma"><img src="https://avatars2.githubusercontent.com/u/11888191?v=4" width="100px;" alt=""/><br /><sub><b>Sebastián</b></sub></a><br /><a href="https://github.com/asyncapi/html-template/commits?author=sebastian-palma" title="Tests">⚠️</a> <a href="https://github.com/asyncapi/html-template/commits?author=sebastian-palma" title="Code">💻</a></td>
   </tr>
 </table>