docs: add michalgrzegorczyk-dev as a contributor for doc (#1137)

* docs: update README.md

* docs: update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -327,6 +327,15 @@
       "contributions": [
         "bug"
       ]
+    },
+    {
+      "login": "michalgrzegorczyk-dev",
+      "name": "Michał Grzegorczyk",
+      "avatar_url": "https://avatars.githubusercontent.com/u/47832176?v=4",
+      "profile": "https://github.com/michalgrzegorczyk-dev",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -72,6 +72,7 @@ Check [all 56 challenges](https://angular-challenges.vercel.app/)
     <tr>
       <td align="center" valign="top" width="14.28%"><a href="https://enochgao.github.io/"><img src="https://avatars.githubusercontent.com/u/41459067?v=4?s=100" width="100px;" alt="Enoch Gao"/><br /><sub><b>Enoch Gao</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/commits?author=EnochGao" title="Documentation">📖</a> <a href="#translation-ch-EnochGao" title="Translate in Chinese">🇨🇳</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/fpalmab"><img src="https://avatars.githubusercontent.com/u/7729812?v=4?s=100" width="100px;" alt="Francisco Palma"/><br /><sub><b>Francisco Palma</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/issues?q=author%3Afpalmab" title="Bug reports">🐛</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/michalgrzegorczyk-dev"><img src="https://avatars.githubusercontent.com/u/47832176?v=4?s=100" width="100px;" alt="Michał Grzegorczyk"/><br /><sub><b>Michał Grzegorczyk</b></sub></a><br /><a href="https://github.com/tomalaforge/angular-challenges/commits?author=michalgrzegorczyk-dev" title="Documentation">📖</a></td>
     </tr>
   </tbody>
   <tfoot>