Update README.md

README.md

@@ -1,22 +1,37 @@
 # electron-mattermost
 Desktop app for [Mattermost](http://www.mattermost.org/) that runs on [Electron](http://electron.atom.io/)
 
+
 ## Features
+
+### Desktop integration
 * Badges for unread channels
-* Desktop notification
-* Stay in taskbar (Windows)
+* Notification
+  * Windows: Balloon or Toast
+  * OS X: Notification Center
+* Resident application
+
+### Pre-packaged
+You don't have to install any other software.
+
 
 ## Usage
+
+### Installation
 1. Download and unarchive a file from [release page](http://github.com/yuya-oc/electron-mattermost/releases).
 2. Launch electron-mattermost.exe or electron-mattermost.app
 3. After first launching, please input URL for your Mattermost team. For exmaple, `http://mattermost.example.com/team`.
-4. Ctrl or Command + Q to exit.
 
+### Quit
+Ctrl or Command + Q to quit.
+
+### Configuration
 Configuration will be saved into Electron's userData directory:
 * `%APPDATA%\electron-mattermost` on Windows
 * `~/Library/Application Support/electron-mattermost` on OS X
 * `~/.config/electron-mattermost` on Linux
 
+
 ## Testing
 Node.js is required to test this app.
 
@@ -24,6 +39,7 @@ Node.js is required to test this app.
 2. Run `npm install`.
 3. Run `npm start`. (If you have gulp, `gulp serve` has live-reload.)
 
+
 ## Packaging
 gulp is necessary for packaging this app.