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README.md

 Fork from [mderrick/react-html5video](https://github.com/mderrick/react-html5video)
 
-Add speed/playbackRate control
+Add speed/playbackRate control
+
+Install dependencies.
+
+```bash
+$ npm install
+```
+
+Start server.
+
+```bash
+$ npm start
+```
+
+Build dist.
+
+```bash
+$ npm run build
+```