Update EmbededApp.md

Use ``` instead of indentation for code blocks

Author: meetwudi

docs/EmbededApp.md

@@ -13,42 +13,60 @@ next: activityindicatorios
 
 When you are ready to work with Cocoapods, add the following line to `Podfile`. If you don't have one, then create it under the root directory of your project.
 
-	pod 'React'
-	pod 'React/RCTText'  
-	# Add any subspecs you want to use in your project
+```
+pod 'React'
+pod 'React/RCTText'  
+# Add any subspecs you want to use in your project
+```
 
 Remember to install all subspecs you need. The `<Text>` element cannot be used without `pod 'React/RCTText'`.
-	
+  
 Then install pods via shell
 
-	$ pod install --verbose
-	
+```
+$ pod install --verbose
+```
+  
 The installation process also requires [Node.js](http://nodejs.org).
 
 ## Create Your React Native App
 
 First, enter React Native's pod root directory and create **index.ios.js** inside a directory `ReactComponent`.
 
-	$ cd Pods/React
-	$ mkdir ReactComponent
-	$ touch index.ios.js
-	
+```
+$ cd Pods/React
+$ mkdir ReactComponent
+$ touch index.ios.js
+```
+  
 Copy & paste following starter code for **index.ios.js**.
 
-	var React = require('react-native');
-
-	var {
-	  Text
-	} = React;
-	
-	class SimpleApp extends React.Component {
-	  render() {
-	    return <Text>This is a simple application.</Text>
-	  }
-	}
-	
-	AppRegistry.registerComponent('SimpleApp', () => SimpleApp);
-	
+```
+var React = require('react-native');
+
+var {
+  Text,
+  View
+} = React;
+
+var styles = React.StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: 'red'
+  }
+});
+
+class SimpleApp extends React.Component {
+  render() {
+    return <View style={styles.container}>
+        <Text>This is a simple application.</Text>
+      </View>;
+  }
+}
+
+React.AppRegistry.registerComponent('SimpleApp', () => SimpleApp);
+```
+  
 `SimpleApp` will be your **module name**, which will be used later on.
 
 ## Add Container View To Your App
@@ -59,21 +77,24 @@ You should now add container view for React Native component. It can be any **UI
 
 However, let's subclass **UIView** for the sake of clean code. Let's name it **ReactView**. Open up **Yourproject.xcworkspace** and create a new class **ReactView** (You can name it whatever you like :)).  
 
-	// ReactView.h
-	
-	#import <UIKit/UIKit.h>
-	@interface ReactView : UIView
-	@end
+```
+// ReactView.h
 
+#import <UIKit/UIKit.h>
+@interface ReactView : UIView
+@end
+```
 
 Don't forget to add an outlet for it.
-	
-	// ViewController.m
-
-	@interface ViewController ()
-	@property (weak, nonatomic) IBOutlet ReactView *reactView;
-	@end
-	
+  
+```
+// ViewController.m
+
+@interface ViewController ()
+@property (weak, nonatomic) IBOutlet ReactView *reactView;
+@end
+```
+  
 Here I disabled **AutoLayout** for simplicity. In real production world, you should turn on AutoLayout and setup constraints by yourself.
 
 ## Add RCTRootView To Container View
@@ -82,22 +103,29 @@ Ready for the most interesting part? Now we shall create the **RCTRootView**, wh
 
 In **ReactView.m**, we need to first initiate **RCTRootView** with the URI of your **index.ios.bundle**. **index.ios.bundle** will be created by packager and served by React Native server, which will be discussed later on.
 
-    NSString *urlString = @"http://localhost:8081/index.ios.bundle";
-    NSURL *jsCodeLocation = [NSURL URLWithString:urlString];
-    RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
-                                                        moduleName: @"SimpleApp"
-                                                     launchOptions:nil];
+```
+NSString *urlString = @"http://localhost:8081/index.ios.bundle";
+NSURL *jsCodeLocation = [NSURL URLWithString:urlString];
+RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
+                                                    moduleName: @"SimpleApp"
+                                                 launchOptions:nil];
+```
+
 Then add it as a subview of the **ReactView**.
 
-    [self addSubview:rootView];
-    rootView.frame = self.bounds;
-    
+```
+[self addSubview:rootView];
+rootView.frame = self.bounds;
+```
+
 ## Start Development Server
 
 In root directory, we need to start React Native development server. 
 
-	$ ./Pods/React/packager/packager.sh --root ./ReactComponents
-	
+```
+$ ./Pods/React/packager/packager.sh --root ./ReactComponents
+```
+
 `--root` indicates the root of your React Native apps. Here we just have one **index.ios.js**. React Native development server will use packager to create a **index.ios.bundle**. Which can be access via `http://localhost:8081/index.ios.bundle`.
 
 ## Compile And Run