docs: add mattdoran as a contributor (#574)

* 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

@@ -602,6 +602,15 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "mattdoran",
+      "name": "Matt Doran",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/577779?v=4",
+      "profile": "https://github.com/mattdoran",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -139,7 +139,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://github.com/mbrandau"><img src="https://avatars3.githubusercontent.com/u/12972798?v=4" width="100px;" alt=""/><br /><sub><b>Maximilian Brandau</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/aneisch"><img src="https://avatars1.githubusercontent.com/u/6991461?v=4" width="100px;" alt=""/><br /><sub><b>Andrew</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=aneisch" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/sixcorners"><img src="https://avatars0.githubusercontent.com/u/585501?v=4" width="100px;" alt=""/><br /><sub><b>sixcorners</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=sixcorners" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://piksel.se"><img src="https://avatars2.githubusercontent.com/u/807383?v=4" width="100px;" alt=""/><br /><sub><b>nils måsén</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://piksel.se"><img src="https://avatars2.githubusercontent.com/u/807383?v=4" width="100px;" alt=""/><br /><sub><b>nils måsén</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Code">💻</a></td>
     <td align="center"><a href="https://arnested.dk"><img src="https://avatars2.githubusercontent.com/u/190005?v=4" width="100px;" alt=""/><br /><sub><b>Arne Jørgensen</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=arnested" title="Tests">⚠️</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Aarnested" title="Reviewed Pull Requests">👀</a></td>
   </tr>
   <tr>
@@ -153,6 +153,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   </tr>
   <tr>
     <td align="center"><a href="https://github.com/pgrimaud"><img src="https://avatars1.githubusercontent.com/u/1866496?v=4" width="100px;" alt=""/><br /><sub><b>Pierre Grimaud</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=pgrimaud" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/mattdoran"><img src="https://avatars0.githubusercontent.com/u/577779?v=4" width="100px;" alt=""/><br /><sub><b>Matt Doran</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mattdoran" title="Documentation">📖</a></td>
   </tr>
 </table>