docs: add waynevanson as a contributor for code, and test (#626)

Author: allcontributors[bot]

.all-contributorsrc

@@ -784,6 +784,16 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "waynevanson",
+      "name": "Wayne Van Son",
+      "avatar_url": "https://avatars.githubusercontent.com/u/29592214?v=4",
+      "profile": "http://www.waynevanson.com",
+      "contributions": [
+        "code",
+        "test"
+      ]
     }
   ],
   "repoHost": "https://github.com",

README.md

@@ -1553,6 +1553,7 @@ Thanks goes to these people ([emoji key][emojis]):
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/aleks-elkin"><img src="https://avatars.githubusercontent.com/u/55530374?v=4?s=100" width="100px;" alt="Aleksandr Elkin"/><br /><sub><b>Aleksandr Elkin</b></sub></a><br /><a href="#maintenance-aleks-elkin" title="Maintenance">🚧</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://www.vorant94.io/"><img src="https://avatars.githubusercontent.com/u/9719319?v=4?s=100" width="100px;" alt="Mordechai Dror"/><br /><sub><b>Mordechai Dror</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=vorant94" title="Code">💻</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="http://www.waynevanson.com"><img src="https://avatars.githubusercontent.com/u/29592214?v=4?s=100" width="100px;" alt="Wayne Van Son"/><br /><sub><b>Wayne Van Son</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=waynevanson" title="Code">💻</a> <a href="https://github.com/testing-library/jest-dom/commits?author=waynevanson" title="Tests">⚠️</a></td>
     </tr>
   </tbody>
 </table>