docs: add pwolaq as a contributor for code, and test (#639)

* docs: update README.md

* docs: update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -325,7 +325,8 @@
       "avatar_url": "https://avatars3.githubusercontent.com/u/10261750?v=4",
       "profile": "https://github.com/pwolaq",
       "contributions": [
-        "test"
+        "test",
+        "code"
       ]
     },
     {

README.md

@@ -1505,7 +1505,7 @@ Thanks goes to these people ([emoji key][emojis]):
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/YardenShoham"><img src="https://avatars3.githubusercontent.com/u/20454870?v=4?s=100" width="100px;" alt="Yarden Shoham"/><br /><sub><b>Yarden Shoham</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=YardenShoham" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://jagascript.com"><img src="https://avatars0.githubusercontent.com/u/4562878?v=4?s=100" width="100px;" alt="Jaga Santagostino"/><br /><sub><b>Jaga Santagostino</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/issues?q=author%3Akandros" title="Bug reports">🐛</a> <a href="https://github.com/testing-library/jest-dom/commits?author=kandros" title="Tests">⚠️</a> <a href="https://github.com/testing-library/jest-dom/commits?author=kandros" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/connormeredith"><img src="https://avatars0.githubusercontent.com/u/4907463?v=4?s=100" width="100px;" alt="Connor Meredith"/><br /><sub><b>Connor Meredith</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=connormeredith" title="Code">💻</a> <a href="https://github.com/testing-library/jest-dom/commits?author=connormeredith" title="Tests">⚠️</a> <a href="https://github.com/testing-library/jest-dom/commits?author=connormeredith" title="Documentation">📖</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://github.com/pwolaq"><img src="https://avatars3.githubusercontent.com/u/10261750?v=4?s=100" width="100px;" alt="Pawel Wolak"/><br /><sub><b>Pawel Wolak</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=pwolaq" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/pwolaq"><img src="https://avatars3.githubusercontent.com/u/10261750?v=4?s=100" width="100px;" alt="Pawel Wolak"/><br /><sub><b>Pawel Wolak</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=pwolaq" title="Tests">⚠️</a> <a href="https://github.com/testing-library/jest-dom/commits?author=pwolaq" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://michaeldeboey.be"><img src="https://avatars3.githubusercontent.com/u/6643991?v=4?s=100" width="100px;" alt="Michaël De Boey"/><br /><sub><b>Michaël De Boey</b></sub></a><br /><a href="#infra-MichaelDeBoey" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/jzarzeckis"><img src="https://avatars3.githubusercontent.com/u/919350?v=4?s=100" width="100px;" alt="Jānis Zaržeckis"/><br /><sub><b>Jānis Zaržeckis</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=jzarzeckis" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/koala-lava"><img src="https://avatars0.githubusercontent.com/u/15828770?v=4?s=100" width="100px;" alt="koala-lava"/><br /><sub><b>koala-lava</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=koala-lava" title="Documentation">📖</a></td>