docs: add aratcliffe as a contributor (#134)

* docs: update README.md

* docs: update .all-contributorsrc

Author: allcontributors[bot]

.all-contributorsrc

@@ -160,6 +160,15 @@
       "contributions": [
         "test"
       ]
+    },
+    {
+      "login": "aratcliffe",
+      "name": "Adam Ratcliffe",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/491126?v=4",
+      "profile": "https://github.com/aratcliffe",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -1037,6 +1037,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://github.com/dhurlburtusa"><img src="https://avatars3.githubusercontent.com/u/4006431?v=4" width="100px;" alt="Danny Hurlburt"/><br /><sub><b>Danny Hurlburt</b></sub></a><br /><a href="#ideas-dhurlburtusa" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/async-library/react-async/commits?author=dhurlburtusa" title="Documentation">📖</a></td>
     <td align="center"><a href="https://noelyoo.github.io/resume"><img src="https://avatars2.githubusercontent.com/u/25740248?v=4" width="100px;" alt="Noel Yoo"/><br /><sub><b>Noel Yoo</b></sub></a><br /><a href="https://github.com/async-library/react-async/commits?author=noelyoo" title="Tests">⚠️</a></td>
+    <td align="center"><a href="https://github.com/aratcliffe"><img src="https://avatars3.githubusercontent.com/u/491126?v=4" width="100px;" alt="Adam Ratcliffe"/><br /><sub><b>Adam Ratcliffe</b></sub></a><br /><a href="https://github.com/async-library/react-async/commits?author=aratcliffe" title="Code">💻</a></td>
   </tr>
 </table>