Merge pull request #494 from containrrr/all-contributors/add-mbrandau

docs: add mbrandau as a contributor

.all-contributorsrc

@@ -483,7 +483,8 @@
       "avatar_url": "https://avatars3.githubusercontent.com/u/12972798?v=4",
       "profile": "https://github.com/mbrandau",
       "contributions": [
-        "code"
+        "code",
+        "test"
       ]
     },
     {

README.md

@@ -136,7 +136,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://github.com/auanasgheps"><img src="https://avatars2.githubusercontent.com/u/20586878?v=4" width="100px;" alt=""/><br /><sub><b>Oliver Cervera</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=auanasgheps" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/victorcmoura"><img src="https://avatars1.githubusercontent.com/u/26290053?v=4" width="100px;" alt=""/><br /><sub><b>Victor Moura</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Tests">⚠️</a></td>
-    <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></td>
+    <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="Documentation">📖</a></td>