Add readme

README.md

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 # electron-quick-start
-Fork and clone to try a simple Electron app
+
+**Clone and run for a quick way to see an Electron in action.**
+
+This is a minimal Electron application based on the [Quick Start Guide](http://electron.atom.io/docs/latest/tutorial/quick-start) within the Electron documentation.
+
+An basic Electron application needs just these files:
+
+- `index.html` - A web page to render.
+- `main.js` - Starts the app and creates a browser window to render HTML.
+- `package.json` - Points to the app's main file and lists its details and dependencies.
+
+You can learn more about each of these components within the [Quick Start Guide](http://electron.atom.io/docs/latest/tutorial/quick-start).
+
+## To Use
+
+To clone and run this repository you'll need [Git](https://git-scm.com) and [Node.js](https://nodejs.org/en/download/) (which comes with [npm](http://npmjs.com)) installed on your computer. From your command line:
+
+```bash
+# Clone this repository
+$ git clone https://github.com/atom/electron-quick-start
+# Go into the repository
+$ cd electron-quick-start
+# Install dependencies and run the app
+$ npm install && npm start
+```
+
+Learn more about Electron and its API in the [documentation](http://electron.atom.io/docs/latest).
+
+#### License [MIT](LICENSE.md)