docs: add kboedges as a contributor (#271)

* docs: update README.md

* docs: update .all-contributorsrc

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -494,6 +494,15 @@
         "test",
         "ideas"
       ]
+    },
+    {
+      "login": "kboedges",
+      "name": "Katie Boedges",
+      "avatar_url": "https://avatars1.githubusercontent.com/u/8322476?v=4",
+      "profile": "http://katieboedges.com/",
+      "contributions": [
+        "infra"
+      ]
     }
   ],
   "repoHost": "https://github.com",

README.md

@@ -1159,6 +1159,9 @@ Thanks goes to these people ([emoji key][emojis]):
     <td align="center"><a href="https://github.com/missilev"><img src="https://avatars1.githubusercontent.com/u/33201468?v=4" width="100px;" alt=""/><br /><sub><b>Vladislav Katsura</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=missilev" title="Code">💻</a> <a href="https://github.com/testing-library/jest-dom/commits?author=missilev" title="Tests">⚠️</a></td>
     <td align="center"><a href="http://stderr.timfischbach.de"><img src="https://avatars3.githubusercontent.com/u/26554?v=4" width="100px;" alt=""/><br /><sub><b>Tim Fischbach</b></sub></a><br /><a href="https://github.com/testing-library/jest-dom/commits?author=tf" title="Code">💻</a> <a href="https://github.com/testing-library/jest-dom/commits?author=tf" title="Tests">⚠️</a> <a href="#ideas-tf" title="Ideas, Planning, & Feedback">🤔</a></td>
   </tr>
+  <tr>
+    <td align="center"><a href="http://katieboedges.com/"><img src="https://avatars1.githubusercontent.com/u/8322476?v=4" width="100px;" alt=""/><br /><sub><b>Katie Boedges</b></sub></a><br /><a href="#infra-kboedges" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
+  </tr>
 </table>
 
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