docs: add pustovalov as a contributor (#420)

* 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

@@ -603,6 +603,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "pustovalov",
+      "name": "Pavel Pustovalov",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/1568885?v=4",
+      "profile": "http://pustovalov.dev",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -119,6 +119,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/danieljcafonso"><img src="https://avatars3.githubusercontent.com/u/35337607?v=4" width="100px;" alt=""/><br /><sub><b>Daniel Afonso</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=danieljcafonso" title="Documentation">📖</a></td>
     <td align="center"><a href="https://dev.to/nomangul"><img src="https://avatars1.githubusercontent.com/u/39244918?v=4" width="100px;" alt=""/><br /><sub><b>Noman Gul</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=NomanGul" title="Documentation">📖</a></td>
     <td align="center"><a href="http://rafatech.tk"><img src="https://avatars2.githubusercontent.com/u/20307803?v=4" width="100px;" alt=""/><br /><sub><b>Rafael Souza</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=rafaelangical" title="Documentation">📖</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/testing-library-docs/commits?author=pustovalov" title="Documentation">📖</a></td>
   </tr>
 </table>