docs: add @manudss as a contributor

Author: manudss

.all-contributorsrc

@@ -49,6 +49,16 @@
         "code",
         "doc"
       ]
+    },
+    {
+      "login": "manudss",
+      "name": "Emmanuel De Saint Steban",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/1046806?v=4",
+      "profile": "https://github.com/manudss",
+      "contributions": [
+        "code",
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -400,6 +400,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/Coly010"><img src="https://avatars2.githubusercontent.com/u/12140467?v=4" width="100px;" alt=""/><br /><sub><b>Colum Ferry</b></sub></a><br /><a href="https://github.com/ngneat/forms-manager/commits?author=Coly010" title="Code">💻</a> <a href="https://github.com/ngneat/forms-manager/commits?author=Coly010" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/mehmet-erim"><img src="https://avatars0.githubusercontent.com/u/34455572?v=4" width="100px;" alt=""/><br /><sub><b>Mehmet Erim</b></sub></a><br /><a href="https://github.com/ngneat/forms-manager/commits?author=mehmet-erim" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/dspeirs7"><img src="https://avatars2.githubusercontent.com/u/739058?v=4" width="100px;" alt=""/><br /><sub><b>David Speirs</b></sub></a><br /><a href="https://github.com/ngneat/forms-manager/commits?author=dspeirs7" title="Code">💻</a> <a href="https://github.com/ngneat/forms-manager/commits?author=dspeirs7" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/manudss"><img src="https://avatars3.githubusercontent.com/u/1046806?v=4" width="100px;" alt=""/><br /><sub><b>Emmanuel De Saint Steban</b></sub></a><br /><a href="https://github.com/ngneat/forms-manager/commits?author=manudss" title="Code">💻</a> <a href="https://github.com/ngneat/forms-manager/commits?author=manudss" title="Documentation">📖</a></td>
   </tr>
 </table>