diff --git a/README.md b/README.md
index 983c93c..daedb7f 100644
--- a/README.md
+++ b/README.md
@@ -5,48 +5,54 @@ Android image indicator for user guide or auto broadcast effect.
 
 Style 1:
 ----------------------
-common mode:  
-    <com.allthelucky.common.view.ImageIndicatorView
-        android:id="@+id/indicate_view"
-        android:layout_width="match_parent"
-        android:layout_height="160dp" />
+layout
+
+	<com.allthelucky.common.view.ImageIndicatorView
+	android:id="@+id/indicate_view"
+	android:layout_width="match_parent"
+	android:layout_height="160dp" />
         
-set ImageIndicatorView as:  
-		AutoPlayManager autoBrocastManager =  new AutoPlayManager(this.autoImageIndicatorView);
-		autoBrocastManager.setBroadcastEnable(true);
-		autoBrocastManager.setBroadCastTimes(5);//循环次数
-		autoBrocastManager.setBroadcastTimeIntevel(3 * 1000, 3 * 1000);//首次启动时间及间隔
-		autoBrocastManager.loop();
-
-broadcast mode:  
-    <com.allthelucky.common.view.AutoImageIndicatorView
-        android:id="@+id/auto_indicate_view"
-        android:layout_width="match_parent"
-        android:layout_height="160dp" />
+set ImageIndicatorView as:
+
+	AutoPlayManager autoBrocastManager =  new AutoPlayManager(this.autoImageIndicatorView);
+	autoBrocastManager.setBroadcastEnable(true);
+	autoBrocastManager.setBroadCastTimes(5);//循环次数
+	autoBrocastManager.setBroadcastTimeIntevel(3 * 1000, 3 * 1000);//首次启动时间及间隔
+	autoBrocastManager.loop();
+
+broadcast mode:
+
+	<com.allthelucky.common.view.AutoImageIndicatorView
+	android:id="@+id/auto_indicate_view"
+	android:layout_width="match_parent"
+	android:layout_height="160dp" />
         
-set AutoImageIndicatorView as:  
-    autoImageIndicatorView = (AutoImageIndicatorView) findViewById(R.id.auto_indicate_view);
-    final Integer[] resArray = new Integer[] { R.drawable.ic_launcher, R.drawable.ic_launcher };
-    autoImageIndicatorView.setBroadcastEnable(true);
-    autoImageIndicatorView.setBroadCastTimes(5);//循环播放5次
-    autoImageIndicatorView.setBroadcastTimeIntevel(2 * 1000, 3 * 1000);//播放启动时间及间隔
-    autoImageIndicatorView.setupLayoutByDrawable(resArray);//图片
-    autoImageIndicatorView.show();
+set AutoImageIndicatorView as:
+
+	autoImageIndicatorView = (AutoImageIndicatorView) findViewById(R.id.auto_indicate_view);
+	final Integer[] resArray = new Integer[] { R.drawable.ic_launcher, R.drawable.ic_launcher };
+	autoImageIndicatorView.setBroadcastEnable(true);
+	autoImageIndicatorView.setBroadCastTimes(5);//循环播放5次
+	autoImageIndicatorView.setBroadcastTimeIntevel(2 * 1000, 3 * 1000);//播放启动时间及间隔
+	autoImageIndicatorView.setupLayoutByDrawable(resArray);//图片
+	autoImageIndicatorView.show();
 
 ![ScreenShot](https://raw.github.com/winfirm/android-image-indicator/master/AndroidImageIndicatorSample/screenshot/poster0.jpg)
 
-Style2(user guide mode):  
-    <com.allthelucky.common.view.ImageIndicatorView
-        android:id="@+id/guide_indicate_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
+Style2(user guide mode):
+
+	<com.allthelucky.common.view.ImageIndicatorView
+	android:id="@+id/guide_indicate_view"
+	android:layout_width="match_parent"
+	android:layout_height="match_parent" />
         
-set ImageIndicatorView as:  
-    this.imageIndicatorView = (ImageIndicatorView) findViewById(R.id.guide_indicate_view);
-    final Integer[] resArray = new Integer[] { R.drawable.ic_launcher, R.drawable.ic_launcher };
-    imageIndicatorView.setupLayoutByDrawable(resArray);
-    imageIndicatorView.setIndicateStyle(ImageIndicatorView.INDICATE_USERGUIDE_STYLE);
-    imageIndicatorView.show();
+set ImageIndicatorView as:
+
+	this.imageIndicatorView = (ImageIndicatorView) findViewById(R.id.guide_indicate_view);
+	final Integer[] resArray = new Integer[] { R.drawable.ic_launcher, R.drawable.ic_launcher };
+	imageIndicatorView.setupLayoutByDrawable(resArray);
+	imageIndicatorView.setIndicateStyle(ImageIndicatorView.INDICATE_USERGUIDE_STYLE);
+	imageIndicatorView.show();
 
 ![ScreenShot](https://raw.github.com/winfirm/android-image-indicator/master/AndroidImageIndicatorSample/screenshot/guider_00.jpg)  
 ![ScreenShot](https://raw.github.com/winfirm/android-image-indicator/master/AndroidImageIndicatorSample/screenshot/guider_01.jpg)