docs: add GrantIsEaton as a contributor for doc (testing-library#1072)

Author: allcontributors[bot]

.all-contributorsrc

@@ -1916,6 +1916,15 @@
  "contributions": [
  "doc"
  ]
+ },
+ {
+ "login": "GrantIsEaton",
+ "name": "Grant Eaton",
+ "avatar_url": "https://avatars.githubusercontent.com/u/101603396?v=4",
+ "profile": "https://github.com/GrantIsEaton",
+ "contributions": [
+ "doc"
+ ]
  }
  ],
  "contributorsPerLine": 7,

README.md

@@ -406,6 +406,7 @@ Thanks goes to these wonderful people
  </tr>
  <tr>
  <td align="center"><a href="https://github.com/patrady"><img src="https://avatars.githubusercontent.com/u/17067460?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Patrick Brady</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=patrady" title="Documentation">📖</a></td>
+ <td align="center"><a href="https://github.com/GrantIsEaton"><img src="https://avatars.githubusercontent.com/u/101603396?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Grant Eaton</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=GrantIsEaton" title="Documentation">📖</a></td>
  </tr>
 </table>