Add @stephencookdev as a contributor

Author: stephencookdev

.all-contributorsrc

@@ -0,0 +1,29 @@
+{
+  "projectName": "speed-measure-webpack-plugin",
+  "projectOwner": "stephencookdev",
+  "repoType": "github",
+  "repoHost": "https://github.com",
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 100,
+  "commit": true,
+  "commitConvention": "none",
+  "contributors": [
+    {
+      "login": "stephencookdev",
+      "name": "Stephen Cook",
+      "avatar_url": "https://avatars.githubusercontent.com/u/8496655?v=4",
+      "profile": "https://stephencookdev.co.uk/",
+      "contributions": [
+        "code",
+        "doc",
+        "blog",
+        "design",
+        "question",
+        "review"
+      ]
+    }
+  ],
+  "contributorsPerLine": 7
+}

README.md

@@ -1,4 +1,7 @@
 <div align="center">
+<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
+[![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors-)
+<!-- ALL-CONTRIBUTORS-BADGE:END -->
   <img width="120" height="120" src="https://rawgit.com/stephencookdev/speed-measure-webpack-plugin/master/logo.svg" />
   <h1>
     Speed Measure Plugin
@@ -171,3 +174,23 @@ SMP follows [semver](https://semver.org/). If upgrading a major version, you can
 ## License
 
 [MIT](/LICENSE)
+
+## Contributors ✨
+
+Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+<!-- prettier-ignore-start -->
+<!-- markdownlint-disable -->
+<table>
+  <tr>
+    <td align="center"><a href="https://stephencookdev.co.uk/"><img src="https://avatars.githubusercontent.com/u/8496655?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Stephen Cook</b></sub></a><br /><a href="https://github.com/stephencookdev/speed-measure-webpack-plugin/commits?author=stephencookdev" title="Code">💻</a> <a href="https://github.com/stephencookdev/speed-measure-webpack-plugin/commits?author=stephencookdev" title="Documentation">📖</a> <a href="#blog-stephencookdev" title="Blogposts">📝</a> <a href="#design-stephencookdev" title="Design">🎨</a> <a href="#question-stephencookdev" title="Answering Questions">💬</a> <a href="https://github.com/stephencookdev/speed-measure-webpack-plugin/pulls?q=is%3Apr+reviewed-by%3Astephencookdev" title="Reviewed Pull Requests">👀</a></td>
+  </tr>
+</table>
+
+<!-- markdownlint-restore -->
+<!-- prettier-ignore-end -->
+
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!