docs: add jnnkhrtmnn as a contributor for code (#67)

* docs: update CONTRIBUTING.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

@@ -24,6 +24,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "jnnkhrtmnn",
+      "name": "Jannik Hartmann",
+      "avatar_url": "https://avatars.githubusercontent.com/u/50586833?v=4",
+      "profile": "https://www.linkedin.com/in/jannik-hartmann-4a7234112",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-33-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-3-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 ## Contributors ✨
@@ -13,8 +13,9 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <table>
   <tbody>
     <tr>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/grace-sng7"><img src="https://avatars.githubusercontent.com/u/108954669?v=4?s=100" width="100px;" alt="Grace Sng"/><br /><sub><b>Grace Sng</b></sub></a><br /><a href="https://github.com/py-why/pywhy-llm/commits?author=grace-sng7" title="Code">💻</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/RoseDeSicilia26"><img src="https://avatars.githubusercontent.com/u/72463845?v=4?s=100" width="100px;" alt="Rose De Sicilia"/><br /><sub><b>Rose De Sicilia</b></sub></a><br /><a href="https://github.com/py-why/pywhy-llm/commits?author=RoseDeSicilia26" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/grace-sng7"><img src="https://avatars.githubusercontent.com/u/108954669?v=4?s=100" width="100px;" alt="Grace Sng"/><br /><sub><b>Grace Sng</b></sub></a><br /><a href="https://github.com/py-why/pywhyllm/commits?author=grace-sng7" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/RoseDeSicilia26"><img src="https://avatars.githubusercontent.com/u/72463845?v=4?s=100" width="100px;" alt="Rose De Sicilia"/><br /><sub><b>Rose De Sicilia</b></sub></a><br /><a href="https://github.com/py-why/pywhyllm/commits?author=RoseDeSicilia26" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/jannik-hartmann-4a7234112"><img src="https://avatars.githubusercontent.com/u/50586833?v=4?s=100" width="100px;" alt="Jannik Hartmann"/><br /><sub><b>Jannik Hartmann</b></sub></a><br /><a href="https://github.com/py-why/pywhyllm/commits?author=jnnkhrtmnn" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>