docs: add Hofer-Julian as a contributor (#328)

* docs: update README.md

* docs: update .all-contributorsrc

.all-contributorsrc

@@ -257,6 +257,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "Hofer-Julian",
+      "name": "Hofer-Julian",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/30049909?v=4",
+      "profile": "https://github.com/Hofer-Julian",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7

README.md

@@ -216,6 +216,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   <tr>
     <td align="center"><a href="https://github.com/nickwb"><img src="https://avatars2.githubusercontent.com/u/594211?v=4" width="100px;" alt="Nick Young"/><br /><sub><b>Nick Young</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=nickwb" title="Code">💻</a> <a href="https://github.com/starship/starship/commits?author=nickwb" title="Documentation">📖</a> <a href="https://github.com/starship/starship/commits?author=nickwb" title="Tests">⚠️</a> <a href="#review-nickwb" title="Reviewed Pull Requests">👀</a></td>
     <td align="center"><a href="https://github.com/g2p"><img src="https://avatars1.githubusercontent.com/u/61678?v=4" width="100px;" alt="Gabriel de Perthuis"/><br /><sub><b>Gabriel de Perthuis</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=g2p" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/Hofer-Julian"><img src="https://avatars1.githubusercontent.com/u/30049909?v=4" width="100px;" alt="Hofer-Julian"/><br /><sub><b>Hofer-Julian</b></sub></a><br /><a href="https://github.com/starship/starship/commits?author=Hofer-Julian" title="Documentation">📖</a></td>
   </tr>
 </table>