docs: add CodingItWrong as a contributor for code, test, and 2 more (#764)

Author: allcontributors[bot]

.all-contributorsrc

@@ -585,6 +585,18 @@
         "code",
         "test"
       ]
+    },
+    {
+      "login": "CodingItWrong",
+      "name": "Josh Justice",
+      "avatar_url": "https://avatars.githubusercontent.com/u/15832198?v=4",
+      "profile": "https://codingitwrong.com",
+      "contributions": [
+        "code",
+        "test",
+        "doc",
+        "ideas"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -416,6 +416,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="http://www.linkedin.com/in/bmish"><img src="https://avatars.githubusercontent.com/u/698306?v=4?s=100" width="100px;" alt="Bryan Mishkin"/><br /><sub><b>Bryan Mishkin</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=bmish" title="Documentation">📖</a> <a href="#tool-bmish" title="Tools">🔧</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/theredspoon"><img src="https://avatars.githubusercontent.com/u/20975696?v=4?s=100" width="100px;" alt="Nim G"/><br /><sub><b>Nim G</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=theredspoon" title="Documentation">📖</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/patriscus"><img src="https://avatars.githubusercontent.com/u/23729362?v=4?s=100" width="100px;" alt="Patrick Ahmetovic"/><br /><sub><b>Patrick Ahmetovic</b></sub></a><br /><a href="#ideas-patriscus" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=patriscus" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=patriscus" title="Tests">⚠️</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://codingitwrong.com"><img src="https://avatars.githubusercontent.com/u/15832198?v=4?s=100" width="100px;" alt="Josh Justice"/><br /><sub><b>Josh Justice</b></sub></a><br /><a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=CodingItWrong" title="Code">💻</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=CodingItWrong" title="Tests">⚠️</a> <a href="https://github.com/testing-library/eslint-plugin-testing-library/commits?author=CodingItWrong" title="Documentation">📖</a> <a href="#ideas-CodingItWrong" title="Ideas, Planning, & Feedback">🤔</a></td>
     </tr>
   </tbody>
 </table>