diff --git a/README.md b/README.md
index 3bf9260..7ed075b 100644
--- a/README.md
+++ b/README.md
@@ -1,17 +1,15 @@
 # react-native-simple-radio-button
+
 > simple and useful radio button component for React Native
 
 [![npm](https://img.shields.io/npm/v/react-native-simple-radio-button.svg)]()[![npm](https://img.shields.io/npm/l/react-native-simple-radio-button.svg)]()
 
 [![NPM](https://nodei.co/npm/react-native-simple-radio-button.png?downloads=true&downloadRank=true&stars=true)](https://nodei.co/npm/react-native-simple-radio-button/)
 
-
-Demo
----
+## Demo
 
 ![Demo](./doc/ver1.3_demo.gif)
 
-
 ## Installation
 
 in Cli
@@ -20,51 +18,55 @@ in Cli
 npm i react-native-simple-radio-button --save
 ```
 
-
 # Getting started
 
 ```js
-import RadioForm, {RadioButton, RadioButtonInput, RadioButtonLabel} from 'react-native-simple-radio-button';
-
+import RadioForm, {
+  RadioButton,
+  RadioButtonInput,
+  RadioButtonLabel,
+} from "react-native-simple-radio-button";
 
 var radio_props = [
-  {label: 'param1', value: 0 },
-  {label: 'param2', value: 1 }
+  { label: "param1", value: 0 },
+  { label: "param2", value: 1 },
 ];
 
 var RadioButtonProject = React.createClass({
-  getInitialState: function() {
+  getInitialState: function () {
     return {
       value: 0,
-    }
+    };
   },
-  render: function() {
+  render: function () {
     return (
       <View>
         <RadioForm
           radio_props={radio_props}
           initial={0}
-          onPress={(value) => {this.setState({value:value})}}
+          onPress={(value) => {
+            this.setState({ value: value });
+          }}
         />
       </View>
     );
-  }
+  },
 });
 ```
 
-Basic
----
+## Basic
 
 ```js
 <RadioForm
   radio_props={radio_props}
   initial={0}
-  onPress={(value) => {this.setState({value:value})}}
+  onPress={(value) => {
+    this.setState({ value: value });
+  }}
 />
 ```
 
-Advanced
----
+## Advanced
 
 ```js
 <RadioForm
@@ -72,178 +74,183 @@ Advanced
   initial={0}
   formHorizontal={false}
   labelHorizontal={true}
-  buttonColor={'#2196f3'}
+  buttonColor={"#2196f3"}
   animation={true}
-  onPress={(value) => {this.setState({value:value})}}
+  onPress={(value) => {
+    this.setState({ value: value });
+  }}
 />
 ```
 
-Pro
----
+## Pro
 
 ```js
-<RadioForm
-  formHorizontal={true}
-  animation={true}
->
+<RadioForm formHorizontal={true} animation={true}>
   {/* To create radio buttons, loop through your array of options */}
-  {
-    radio_props.map((obj, i) => (
-      <RadioButton labelHorizontal={true} key={i} >
-        {/*  You can set RadioButtonLabel before RadioButtonInput */}
-        <RadioButtonInput
-          obj={obj}
-          index={i}
-          isSelected={this.state.value3Index === i}
-          onPress={onPress}
-          borderWidth={1}
-          buttonInnerColor={'#e74c3c'}
-          buttonOuterColor={this.state.value3Index === i ? '#2196f3' : '#000'}
-          buttonSize={40}
-          buttonOuterSize={80}
-          buttonStyle={{}}
-          buttonWrapStyle={{marginLeft: 10}}
-        />
-        <RadioButtonLabel
-          obj={obj}
-          index={i}
-          labelHorizontal={true}
-          onPress={onPress}
-          labelStyle={{fontSize: 20, color: '#2ecc71'}}
-          labelWrapStyle={{}}
-        />
-      </RadioButton>
-    ))
-  }  
+  {radio_props.map((obj, i) => (
+    <RadioButton labelHorizontal={true} key={i}>
+      {/*  You can set RadioButtonLabel before RadioButtonInput */}
+      <RadioButtonInput
+        obj={obj}
+        index={i}
+        isSelected={this.state.value3Index === i}
+        onPress={onPress}
+        borderWidth={1}
+        buttonInnerColor={"#e74c3c"}
+        buttonOuterColor={this.state.value3Index === i ? "#2196f3" : "#000"}
+        buttonSize={40}
+        buttonOuterSize={80}
+        buttonStyle={{}}
+        buttonWrapStyle={{ marginLeft: 10 }}
+      />
+      <RadioButtonLabel
+        obj={obj}
+        index={i}
+        labelHorizontal={true}
+        onPress={onPress}
+        labelStyle={{ fontSize: 20, color: "#2ecc71" }}
+        labelWrapStyle={{}}
+      />
+    </RadioButton>
+  ))}
 </RadioForm>
 ```
 
 # Methods
 
 ## updateIsActiveIndex
+
 Updating active radio button forcibly
 
 # Props
 
 ## RadioForm Component
-### radio_props (Default: `[]`) _*required_
+
+### radio*props (Default: `[]`) *\*required\_
+
 radio button value and label array
 
-### onPress _*required_
+### onPress _\*required_
+
 callback when radio button clicked.
 
 ### initial (Default: `0`)
+
 The index of selected radio button. This is used when this component is activated. If you want to
 pass initial as asynchronous, you can use updateIsActiveIndex function.
+
 > If you want to make it empty initially, please pass `-1`
 
 ### buttonColor(Default: '#2196f3')
+
 change radio button color
 
 ```js
-<RadioForm
-  radio_props={radio_props}
-  initial={0}
-  buttonColor={'#50C900'}
-/>
+<RadioForm radio_props={radio_props} initial={0} buttonColor={"#50C900"} />
 ```
 
 ![Demo](./doc/button_color.jpg)
 
 ### labelColor(Default: '#000')
+
 change label color
 
 ```js
-<RadioForm
-  radio_props={radio_props}
-  initial={0}
-  labelColor={'#50C900'}
-/>
+<RadioForm radio_props={radio_props} initial={0} labelColor={"#50C900"} />
 ```
 
-
 ### formHorizontal(Default: false)
+
 change form position
 
 ```js
-<RadioForm
-  radio_props={radio_props}
-  initial={0}
-  formHorizontal={true}
-/>
+<RadioForm radio_props={radio_props} initial={0} formHorizontal={true} />
 ```
 
 ![Demo](./doc/form_horizontal.jpg)
 
-
 ### labelHorizontal(Default: true)
+
 change label position
 
 ```js
-<RadioForm
-  radio_props={radio_props}
-  initial={0}
-  labelHorizontal={false}
-/>
+<RadioForm radio_props={radio_props} initial={0} labelHorizontal={false} />
 ```
 
 ![Demo](./doc/label_horizontal.jpg)
 
 ### animation (Default: `true`)
+
 if you pass false, animation of radio button is disabled
 
 ![Demo](./doc/demo_1.gif)
 
 ### accessible
+
 indicates accessibility for the individual radio button input and radio button label components
 
 ### accessibilityLabel
+
 used to set accessibilityLabel for individual radio button input and radio button label components,
 radio button input will have accessibilityLabel = [accessibilityLabel]Input[index]
 radio button label will have accessibilityLabel = [accessibilityLabel]Label[index]
 
 ### testID
+
 used to set testID for individual radio button input and radio button label components,
 radio button input will have testID = [testID]Input[index]
 radio button label will have testID = [testID]Label[index]
 
 ## RadioButton Component
+
 ### isSelected
+
 If you pass `true` to this param, that button change to selected status.
 
 ### labelHorizontal
+
 change label position to horizontal
 
 ### buttonColor
-The button color
+
+The button color when not selected
 
 ### selectedButtonColor
-The selected button color
+
+The button color when selected
 
 ### labelColor
+
 The label color
 
 ### style
+
 The label style
 
 ### wrapStyle
+
 Styles that are applied to the <View> wrapping the RadioButton component.
 
-## onPress _*required_
+## onPress _\*required_
+
 callback when radio button clicked.
 
 ### idSeparator (Default: `|`)
+
 separator used for extracting id from accessibilityLabel and testID
 
 ### accessible
+
 indicates accessibility for the wrapped radio button input and radio button label components
 
 ### accessibilityLabel
+
 used to set accessibilityLabel for the wrapped radio button input and radio button label components, needs to be of the format [accessibilityLabel][separator][id]
 radio button input will have accessibilityLabel = [accessibilityLabel]Input[index]
 radio button label will have accessibilityLabel = [accessibilityLabel]Label[index]
 
 ### testID
+
 used to set testID for individual radio button input and radio button label components, needs to be of the format [testID][separator][id]
 radio button input will have testID = [testID]Input[index]
 radio button label will have testID = [testID]Label[index]
@@ -251,66 +258,86 @@ radio button label will have testID = [testID]Label[index]
 ```js
 <RadioButton
   accessible={true}
-  idSeparator=','
-  accessibilityLabel='noteType,1'
-  testID='noteType,1'
+  idSeparator=","
+  accessibilityLabel="noteType,1"
+  testID="noteType,1"
 />
 ```
 
 # RadioButtonInput
+
 ### isSelected
+
 ### onPress
+
 ### buttonInnerColor
+
 The button inner color
 
 ### buttonOuterColor
+
 The button inner color
 
 ### buttonSize
+
 The button size. Width and height will be same length.
 
 ### buttonOuterSize
+
 The button size of outer. Width and height will be same length.
 
 ### buttonStyle
+
 Custom button style
 
 ### buttonWrapStyle
+
 Custom style for view of button's outside
 
 ### accessible
+
 indicates accessibility for the radio button input component
 
 ### accessibilityLabel
+
 used to set accessibilityLabel (content description / label for Android) for the radio button input component
 
 ### testID
+
 used to set testID (id / name for iOS) for the radio button input component
 
 # RadioButtonLabel
+
 ### labelHorizontal
+
 If you pass true, the button and label will be aligned horizontally.
 
 ### labelStyle
+
 If you pass style, you can change label text style as you want
 
 ### labelWrapStyle
+
 If you pass style, you can change label wrapper view style as you want
 
-### onPress _*required_
+### onPress _\*required_
+
 callback when radio button clicked.
 
 ### accessible
+
 indicates accessibility for the radio button label component
 
 ### accessibilityLabel
+
 used to set accessibilityLabel (content description / label for Android) for the radio button label component
 
 ### testID
-used to set testID (id / name for iOS) for the radio button label component
 
+used to set testID (id / name for iOS) for the radio button label component
 
 # Contributing
+
 Of course! Welcome :)
 
 You can use following command in `example` dir:
@@ -321,6 +348,6 @@ npm run sync
 
 During running this command, when you change source to implement/fix something, these changes will sync to `example/node_modules/react-native-simple-radio-button/`. You can check your change using example project easily.
 
-
 # License
+
 MIT