docs: add KATT as a contributor (#868)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

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

.all-contributorsrc

@@ -889,6 +889,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "KATT",
+      "name": "Alex Johansson",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/459267?v=4",
+      "profile": "http://kattcorp.com",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -647,6 +647,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://orta.io"><img src="https://avatars2.githubusercontent.com/u/49038?v=4" width="100px;" alt=""/><br /><sub><b>Orta Therox</b></sub></a><br /><a href="#question-orta" title="Answering Questions">💬</a> <a href="https://github.com/formium/tsdx/commits?author=orta" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/thany"><img src="https://avatars1.githubusercontent.com/u/152227?v=4" width="100px;" alt=""/><br /><sub><b>Martijn Saly</b></sub></a><br /><a href="https://github.com/formium/tsdx/issues?q=author%3Athany" title="Bug reports">🐛</a></td>
+    <td align="center"><a href="http://kattcorp.com"><img src="https://avatars1.githubusercontent.com/u/459267?v=4" width="100px;" alt=""/><br /><sub><b>Alex Johansson</b></sub></a><br /><a href="https://github.com/formium/tsdx/commits?author=KATT" title="Documentation">📖</a></td>
   </tr>
 </table>