docs: add arthurdenner as a contributor (#606)

* 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

@@ -99,7 +99,8 @@
       "profile": "https://github.com/arthurdenner",
       "contributions": [
         "bug",
-        "code"
+        "code",
+        "question"
       ]
     },
     {

README.md

@@ -521,7 +521,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
     <td align="center"><a href="https://twitter.com/harry_hedger"><img src="https://avatars2.githubusercontent.com/u/2524280?v=4" width="100px;" alt=""/><br /><sub><b>Harry Hedger</b></sub></a><br /><a href="#ideas-hedgerh" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=hedgerh" title="Documentation">📖</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=hedgerh" title="Code">💻</a> <a href="#question-hedgerh" title="Answering Questions">💬</a></td>
   </tr>
   <tr>
-    <td align="center"><a href="https://github.com/arthurdenner"><img src="https://avatars0.githubusercontent.com/u/13774309?v=4" width="100px;" alt=""/><br /><sub><b>Arthur Denner</b></sub></a><br /><a href="https://github.com/jaredpalmer/tsdx/issues?q=author%3Aarthurdenner" title="Bug reports">🐛</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=arthurdenner" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/arthurdenner"><img src="https://avatars0.githubusercontent.com/u/13774309?v=4" width="100px;" alt=""/><br /><sub><b>Arthur Denner</b></sub></a><br /><a href="https://github.com/jaredpalmer/tsdx/issues?q=author%3Aarthurdenner" title="Bug reports">🐛</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=arthurdenner" title="Code">💻</a> <a href="#question-arthurdenner" title="Answering Questions">💬</a></td>
     <td align="center"><a href="https://carlfoster.io"><img src="https://avatars2.githubusercontent.com/u/5793483?v=4" width="100px;" alt=""/><br /><sub><b>Carl</b></sub></a><br /><a href="#ideas-Carl-Foster" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=Carl-Foster" title="Documentation">📖</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=Carl-Foster" title="Code">💻</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=Carl-Foster" title="Tests">⚠️</a></td>
     <td align="center"><a href="http://iGLOO.be"><img src="https://avatars0.githubusercontent.com/u/900947?v=4" width="100px;" alt=""/><br /><sub><b>Loïc Mahieu</b></sub></a><br /><a href="https://github.com/jaredpalmer/tsdx/commits?author=LoicMahieu" title="Code">💻</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=LoicMahieu" title="Tests">⚠️</a></td>
     <td align="center"><a href="https://github.com/sebald"><img src="https://avatars3.githubusercontent.com/u/985701?v=4" width="100px;" alt=""/><br /><sub><b>Sebastian Sebald</b></sub></a><br /><a href="https://github.com/jaredpalmer/tsdx/commits?author=sebald" title="Documentation">📖</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=sebald" title="Code">💻</a> <a href="https://github.com/jaredpalmer/tsdx/commits?author=sebald" title="Tests">⚠️</a></td>