docs: add @beautifulsummermoon as a contributor

.all-contributorsrc

@@ -404,6 +404,15 @@
       "contributions": [
         "translation"
       ]
+    },
+    {
+      "login": "beautifulsummermoon",
+      "name": "beautifulsummermoon",
+      "avatar_url": "https://avatars.githubusercontent.com/u/40396388?v=4",
+      "profile": "https://github.com/beautifulsummermoon",
+      "contributions": [
+        "translation"
+      ]
     }
   ],
   "contributorsPerLine": 7

CONTRIBUTORS.md

@@ -62,6 +62,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   </tr>
   <tr>
     <td align="center"><a href="http://metafly.info/"><img src="https://avatars.githubusercontent.com/u/961256?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stefan Sydow</b></sub></a><br /><a href="#translation-stsydow" title="Translation">🌍</a></td>
+    <td align="center"><a href="https://github.com/beautifulsummermoon"><img src="https://avatars.githubusercontent.com/u/40396388?v=4?s=100" width="100px;" alt=""/><br /><sub><b>beautifulsummermoon</b></sub></a><br /><a href="#translation-beautifulsummermoon" title="Translation">🌍</a></td>
   </tr>
 </table>