docs: add mkarkkainen as a contributor for code (#210)

* 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

@@ -132,6 +132,15 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "mkarkkainen",
+      "name": "mkarkkainen",
+      "avatar_url": "https://avatars.githubusercontent.com/u/65869801?v=4",
+      "profile": "http://miikkak.dev",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -207,7 +207,7 @@ $ yarn add @nodesecure/estree-ast-util
 ## Contributors ✨
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-13-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-14-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
@@ -233,6 +233,7 @@ 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/fabnguess"><img src="https://avatars.githubusercontent.com/u/72697416?v=4?s=100" width="100px;" alt="Kouadio Fabrice Nguessan"/><br /><sub><b>Kouadio Fabrice Nguessan</b></sub></a><br /><a href="#maintenance-fabnguess" title="Maintenance">🚧</a> <a href="https://github.com/NodeSecure/js-x-ray/commits?author=fabnguess" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jean-michelet"><img src="https://avatars.githubusercontent.com/u/110341611?v=4?s=100" width="100px;" alt="Jean"/><br /><sub><b>Jean</b></sub></a><br /><a href="https://github.com/NodeSecure/js-x-ray/commits?author=jean-michelet" title="Tests">⚠️</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/tchapacan"><img src="https://avatars.githubusercontent.com/u/28821702?v=4?s=100" width="100px;" alt="tchapacan"/><br /><sub><b>tchapacan</b></sub></a><br /><a href="https://github.com/NodeSecure/js-x-ray/commits?author=tchapacan" title="Code">💻</a> <a href="https://github.com/NodeSecure/js-x-ray/commits?author=tchapacan" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://miikkak.dev"><img src="https://avatars.githubusercontent.com/u/65869801?v=4?s=100" width="100px;" alt="mkarkkainen"/><br /><sub><b>mkarkkainen</b></sub></a><br /><a href="https://github.com/NodeSecure/js-x-ray/commits?author=mkarkkainen" title="Code">💻</a></td>
     </tr>
   </tbody>
 </table>