docs: add nickmccurdy as a contributor (#485)

* docs: update README.md

* docs: update .all-contributorsrc


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

Author: allcontributors[bot]

.all-contributorsrc

@@ -873,7 +873,8 @@
       "avatar_url": "https://avatars0.githubusercontent.com/u/927220?v=4",
       "profile": "https://nickmccurdy.com/",
       "contributions": [
-        "review"
+        "review",
+        "question"
       ]
     },
     {

README.md

@@ -499,7 +499,7 @@ Thanks goes to these people ([emoji key][emojis]):
     <td align="center"><a href="https://ghuser.io/jamesgeorge007"><img src="https://avatars2.githubusercontent.com/u/25279263?v=4" width="100px;" alt="James George"/><br /><sub><b>James George</b></sub></a><br /><a href="https://github.com/testing-library/react-testing-library/commits?author=jamesgeorge007" title="Documentation">📖</a></td>
     <td align="center"><a href="https://joaofernandes.me/"><img src="https://avatars1.githubusercontent.com/u/1075053?v=4" width="100px;" alt="João Fernandes"/><br /><sub><b>João Fernandes</b></sub></a><br /><a href="https://github.com/testing-library/react-testing-library/commits?author=JSFernandes" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/alejandroperea"><img src="https://avatars3.githubusercontent.com/u/6084749?v=4" width="100px;" alt="Alejandro Perea"/><br /><sub><b>Alejandro Perea</b></sub></a><br /><a href="#review-alejandroperea" title="Reviewed Pull Requests">👀</a></td>
-    <td align="center"><a href="https://nickmccurdy.com/"><img src="https://avatars0.githubusercontent.com/u/927220?v=4" width="100px;" alt="Nick McCurdy"/><br /><sub><b>Nick McCurdy</b></sub></a><br /><a href="#review-nickmccurdy" title="Reviewed Pull Requests">👀</a></td>
+    <td align="center"><a href="https://nickmccurdy.com/"><img src="https://avatars0.githubusercontent.com/u/927220?v=4" width="100px;" alt="Nick McCurdy"/><br /><sub><b>Nick McCurdy</b></sub></a><br /><a href="#review-nickmccurdy" title="Reviewed Pull Requests">👀</a> <a href="#question-nickmccurdy" title="Answering Questions">💬</a></td>
     <td align="center"><a href="https://twitter.com/sebsilbermann"><img src="https://avatars3.githubusercontent.com/u/12292047?v=4" width="100px;" alt="Sebastian Silbermann"/><br /><sub><b>Sebastian Silbermann</b></sub></a><br /><a href="#review-eps1lon" title="Reviewed Pull Requests">👀</a></td>
   </tr>
   <tr>