docs: add pustovalov as a contributor (#160)

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -243,6 +243,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "pustovalov",
+      "name": "Pavel Pustovalov",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/1568885?v=4",
+      "profile": "http://pustovalov.dev",
+      "contributions": [
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -23,7 +23,7 @@
 [![Tweet][tweet-badge]][tweet-url]
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-22-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-23-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 ## Installation
@@ -205,6 +205,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   </tr>
   <tr>
     <td align="center"><a href="https://xxxl.digital/"><img src="https://avatars2.githubusercontent.com/u/42043025?v=4" width="100px;" alt=""/><br /><sub><b>Miguel Erja González</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/issues?q=author%3Amiguelerja" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="http://pustovalov.dev"><img src="https://avatars2.githubusercontent.com/u/1568885?v=4" width="100px;" alt=""/><br /><sub><b>Pavel Pustovalov</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/issues?q=author%3Apustovalov" title="Bug reports">🐛</a></td>
   </tr>
 </table>