Add @bradyholt as a contributor

Author: Ziλa SARIKAYA

.all-contributorsrc

@@ -0,0 +1,21 @@
+{
+  "projectName": "vscode-open-in-github",
+  "projectOwner": "ziyasal",
+  "files": [
+    "README.md"
+  ],
+  "imageSize": 75,
+  "commit": true,
+  "contributors": [
+    {
+      "login": "bradyholt",
+      "name": "Brady Holt",
+      "avatar_url": "https://avatars0.githubusercontent.com/u/759811?v=4",
+      "profile": "https://www.geekytidbits.com",
+      "contributions": [
+        "code",
+        "doc"
+      ]
+    }
+  ]
+}

README.md

@@ -1,9 +1,10 @@
 ![vscode-open-in-github](images/icon_200.png?raw=true "Open in GitHub / Bitbucket / visualstudio.com")  
+
 **Supports :** GitHub, Bitbucket, Visualstudio.com and GitLab
 
 > Extension for Visual Studio Code which can be used to jump to a source code line in Github, Bitbucket, Visualstudio.com and GitLab
 
-[![Build Status](https://travis-ci.org/ziyasal/vscode-open-in-github.svg?branch=master)](https://travis-ci.org/ziyasal/vscode-open-in-github)
+[![Build Status](https://travis-ci.org/ziyasal/vscode-open-in-github.svg?branch=master)](https://travis-ci.org/ziyasal/vscode-open-in-github) [![All Contributors](https://img.shields.io/badge/all_contributors-1-orange.svg?style=flat-square)](#contributors)
 
 ## Install
 
@@ -81,3 +82,14 @@ Have fun..
 ## License
 
 MIT © [Ziya SARIKAYA @ziyasal](https://github.com/ziyasal) & Contributors
+
+## Contributors
+
+Thanks goes to these wonderful people ([emoji key](https://github.com/kentcdodds/all-contributors#emoji-key)):
+
+<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
+| [<img src="https://avatars0.githubusercontent.com/u/759811?v=4" width="75px;"/><br /><sub>Brady Holt</sub>](https://www.geekytidbits.com)<br />[💻](https://github.com/ziyasal/vscode-open-in-github/commits?author=bradyholt "Code") [📖](https://github.com/ziyasal/vscode-open-in-github/commits?author=bradyholt "Documentation") |
+| :---: |
+<!-- ALL-CONTRIBUTORS-LIST:END -->
+
+This project follows the [all-contributors](https://github.com/kentcdodds/all-contributors) specification. Contributions of any kind welcome!