Update README.md

README.md

@@ -1,26 +1,34 @@
 # floating-layout-android
 [![](https://jitpack.io/v/HamedTaherpour/floating-layout-android.svg)](https://jitpack.io/#HamedTaherpour/floating-layout-android)
 
-### Build
+## Build
 ##### Step 1. Add the JitPack repository to your build file
 ```build
 allprojects {
-	repositories {
-		maven { url "https://jitpack.io" }
-	}
+    repositories {
+        maven { url "https://jitpack.io" }
+    }
 }
 ```
-
 ##### Step 2. Add the dependency
 ```build
 dependencies {
-	implementation 'com.github.HamedTaherpour:floating-layout-android:1.0.0'
+    implementation 'com.github.HamedTaherpour:floating-layout-android:1.0.0'
 }
 ```
 
 ## Usage
-#### Layout.xml
-
+### Manifest
+##### Step 1. Add permission and service to your manifest file
+```xml
+<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
+
+<application>
+	<service android:name=".FloatingLayoutService" />
+</application>
+```
+### Layout.xml
+##### Step 2. Create layout and dont forget add id (root_container) like this
 ```layout
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
@@ -38,10 +46,13 @@ dependencies {
 
 </FrameLayout>
 ```
+### Java
+##### Step 3. Create FloatingLayout
 ```java
-FloatingLayout floatingLayout = new FloatingLayout(this, R.layout.floating_layout, this);
-	if (!floatingLayout.isShow())
-		floatingLayout.create();
+FloatingLayout floatingLayout = new FloatingLayout(this, R.layout.floating_layout, null);
+```
+##### Show FloatingLayout
+```java
+floatingLayout.create();
 ```
-