docs: add ruhollahh as a contributor for doc (testing-library#868)

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

Author: allcontributors[bot]

.all-contributorsrc

@@ -1474,6 +1474,15 @@
  "contributions": [
  "doc"
  ]
+ },
+ {
+ "login": "ruhollahh",
+ "name": "Ruhollah",
+ "avatar_url": "https://avatars.githubusercontent.com/u/53814636?v=4",
+ "profile": "https://github.com/ruhollahh",
+ "contributions": [
+ "doc"
+ ]
  }
  ],
  "contributorsPerLine": 7,

README.md

@@ -341,6 +341,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
  </tr>
  <tr>
  <td align="center"><a href="https://twitter.com/dylan_piercey"><img src="https://avatars.githubusercontent.com/u/4985201?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Dylan Piercey</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=DylanPiercey" title="Documentation">📖</a></td>
+ <td align="center"><a href="https://github.com/ruhollahh"><img src="https://avatars.githubusercontent.com/u/53814636?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ruhollah</b></sub></a><br /><a href="https://github.com/testing-library/testing-library-docs/commits?author=ruhollahh" title="Documentation">📖</a></td>
  </tr>
 </table>