docs: add EmmaGoodliffe as a contributor (#622)

* docs: update README.md

* docs: update .all-contributorsrc

Author: allcontributors[bot]

.all-contributorsrc

@@ -624,7 +624,9 @@
       "avatar_url": "https://avatars1.githubusercontent.com/u/32788926?v=4",
       "profile": "https://github.com/EmmaGoodliffe",
       "contributions": [
-        "ideas"
+        "ideas",
+        "question",
+        "maintenance"
       ]
     },
     {

README.md

@@ -177,7 +177,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
   </tr>
   <tr>
     <td align="center"><a href="https://github.com/tezzutezzu"><img src="https://avatars2.githubusercontent.com/u/135866?v=4" width="100px;" alt="danilo"/><br /><sub><b>danilo</b></sub></a><br /><a href="https://github.com/ml5js/ml5-library/commits?author=tezzutezzu" title="Code">💻</a> <a href="#ideas-tezzutezzu" title="Ideas, Planning, & Feedback">🤔</a></td>
-    <td align="center"><a href="https://github.com/EmmaGoodliffe"><img src="https://avatars1.githubusercontent.com/u/32788926?v=4" width="100px;" alt="Emma Goodliffe"/><br /><sub><b>Emma Goodliffe</b></sub></a><br /><a href="#ideas-EmmaGoodliffe" title="Ideas, Planning, & Feedback">🤔</a></td>
+    <td align="center"><a href="https://github.com/EmmaGoodliffe"><img src="https://avatars1.githubusercontent.com/u/32788926?v=4" width="100px;" alt="Emma Goodliffe"/><br /><sub><b>Emma Goodliffe</b></sub></a><br /><a href="#ideas-EmmaGoodliffe" title="Ideas, Planning, & Feedback">🤔</a> <a href="#question-EmmaGoodliffe" title="Answering Questions">💬</a> <a href="#maintenance-EmmaGoodliffe" title="Maintenance">🚧</a></td>
     <td align="center"><a href="http://yangyang.blog"><img src="https://avatars3.githubusercontent.com/u/9332910?v=4" width="100px;" alt="Yang"/><br /><sub><b>Yang</b></sub></a><br /><a href="https://github.com/ml5js/ml5-library/commits?author=EonYang" title="Code">💻</a> <a href="https://github.com/ml5js/ml5-library/issues?q=author%3AEonYang" title="Bug reports">🐛</a></td>
     <td align="center"><a href="https://github.com/lydiajessup"><img src="https://avatars3.githubusercontent.com/u/26204298?v=4" width="100px;" alt="Lydia Jessup"/><br /><sub><b>Lydia Jessup</b></sub></a><br /><a href="https://github.com/ml5js/ml5-library/commits?author=lydiajessup" title="Code">💻</a> <a href="#ideas-lydiajessup" title="Ideas, Planning, & Feedback">🤔</a> <a href="#example-lydiajessup" title="Examples">💡</a></td>
   </tr>