docs: add kaloyan-raev as a contributor (#374)

* docs: update README.md

* docs: update .all-contributorsrc

.all-contributorsrc

@@ -347,6 +347,16 @@
       "contributions": [
         "doc"
       ]
+    },
+    {
+      "login": "kaloyan-raev",
+      "name": "Kaloyan Raev",
+      "avatar_url": "https://avatars2.githubusercontent.com/u/468091?v=4",
+      "profile": "http://kaloyan.raev.name",
+      "contributions": [
+        "code",
+        "test"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -112,6 +112,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://noplanman.ch"><img src="https://avatars3.githubusercontent.com/u/9423417?v=4" width="100px;" alt="Armando Lüscher"/><br /><sub><b>Armando Lüscher</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=noplanman" title="Documentation">📖</a></td>
     <td align="center"><a href="https://github.com/rjbudke"><img src="https://avatars2.githubusercontent.com/u/273485?v=4" width="100px;" alt="Ryan Budke"/><br /><sub><b>Ryan Budke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rjbudke" title="Documentation">📖</a></td>
+    <td align="center"><a href="http://kaloyan.raev.name"><img src="https://avatars2.githubusercontent.com/u/468091?v=4" width="100px;" alt="Kaloyan Raev"/><br /><sub><b>Kaloyan Raev</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Tests">⚠️</a></td>
   </tr>
 </table>