add docs

.gitignore

@@ -12,4 +12,4 @@ node_modules
 .nyc_output
 coverage
 *.lcov
-./dist
+dist

README.md

@@ -9,8 +9,8 @@ A fully customizable, one-time password input component for the web built with R
 
 ![see here](https://media.giphy.com/media/lN98dFU6h3oP0wWS5x/giphy.gif)
 
-### Support auto fill on mobile (safari, chrome....)
-![see here](https://res.cloudinary.com/hunghg255/image/upload/v1684903469/rc-otp_wabj3h.jpg)
+## Support auto fill on mobile (safari, chrome....)
+![see here](https://res.cloudinary.com/hunghg255/image/upload/v1690099530/react-otp-input_r7ukv1.png)
 
 
 [Live Demo](https://reactjs-otp-input-demo.vercel.app/)
@@ -20,7 +20,7 @@ A fully customizable, one-time password input component for the web built with R
 [![NPM](https://nodei.co/npm/reactjs-otp-input.png?compact=true)](https://nodei.co/npm/reactjs-otp-input/)
 
 
-#### To install the latest stable version:
+## To install the latest stable version:
 
 ```
 npm install --save reactjs-otp-input@latest
@@ -31,7 +31,7 @@ Or `yarn`
 yarn add reactjs-otp-input
 ```
 
-#### Basic usage:
+## Basic usage:
 
 ```jsx
 import React, { Component } from 'react';
@@ -47,9 +47,7 @@ export default const App {
 ```
 
 
-## Development
-
-#### To run the development server:
+## To run the development server:
 
 ```
 npm run dev