docs: add john-sharratt as a contributor for code (#164)

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

* Update README with contributor list [skip ci]

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

.all-contributorsrc

@@ -168,6 +168,15 @@
       "contributions": [
         "syntax-highlighting"
       ]
+    },
+    {
+      "login": "john-sharratt",
+      "name": "Johnathan Sharratt",
+      "avatar_url": "https://avatars.githubusercontent.com/u/17711537?v=4",
+      "profile": "https://github.com/john-sharratt",
+      "contributions": [
+        "code"
+      ]
     }
   ]
-}
+}

README.md

@@ -10,7 +10,7 @@
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](CODE_OF_CONDUCT.md) 
 [![Gitpod Ready-to-Code](https://img.shields.io/badge/Gitpod-Ready--to--Code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/ilai-deutel/kibi
 )<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-17-orange.svg)](#contributors)
+[![All Contributors](https://img.shields.io/badge/all_contributors-18-orange.svg)](#contributors)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![asciicast](assets/asciicast.gif)](https://asciinema.org/a/KY7tKPlxHXqRdJiv5KaTJbPj5)
@@ -359,6 +359,7 @@ any kind welcome!
     <td align="center"><a href="https://github.com/gVirtu"><img src="https://avatars.githubusercontent.com/u/15658199?v=4" width="100px;" alt=""/><br /><sub><b>Giancarlo França</b></sub></a><br /><a href="https://github.com/ilai-deutel/kibi/commits?author=gVirtu" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/ilmanzo"><img src="https://avatars.githubusercontent.com/u/1872816?v=4" width="100px;" alt=""/><br /><sub><b>Andrea Manzini</b></sub></a><br /><a href="https://github.com/ilai-deutel/kibi/commits?author=ilmanzo" title="Code">💻</a> <a href="https://github.com/ilai-deutel/kibi/commits?author=ilmanzo" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/Arkaeriit"><img src="https://avatars.githubusercontent.com/u/47985708?v=4" width="100px;" alt=""/><br /><sub><b>Maxime Bouillot</b></sub></a><br /><a href="#syntax-highlighting-Arkaeriit" title="Contributing to syntax highlighting configuration files">💠</a></td>
+    <td align="center"><a href="https://github.com/john-sharratt"><img src="https://avatars.githubusercontent.com/u/17711537?v=4" width="100px;" alt=""/><br /><sub><b>Johnathan Sharratt</b></sub></a><br /><a href="https://github.com/ilai-deutel/kibi/commits?author=john-sharratt" title="Code">💻</a></td>
   </tr>
 </table>