diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,72 @@
 # WKCookieWebView
-WKWebView with cookie sharing support
+
+- WKWebView with cookie sharing support
+
+## Requirements
+- iOS 8.0+
+- XCode 8.0+
+- Built with Swift 3
+
+## Installation
+
+#### CocoaPods
+WKCookieWebView is available through [CocoaPods](http://cocoapods.org). To install
+it, simply add the following line to your Podfile:
+
+```ruby
+pod 'WKCookieWebView'
+```
+
+#### Carthage
+For iOS 8+ projects with [Carthage](https://github.com/Carthage/Carthage)
+
+```
+github "Kofktu/WKCookieWebView"
+```
+
+## Usage
+
+#### navigationDelegate -> wkNavigationDelegate
+
+- You should use ```wkNavigationDelegate``` instead of ```navigationDelegate```.
+- However, the three methods of WKNavigationDelegate must use closure instead of delegate.
+
+
+
+```swift
+// @available(iOS 8.0, *)
+// optional public func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Swift.Void)
+public var onDecidePolicyForNavigationAction: ((WKWebView, WKNavigationAction, @escaping (WKNavigationActionPolicy) -> Swift.Void) -> Void)?
+
+// @available(iOS 8.0, *)
+// optional public func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Swift.Void)
+public var onDecidePolicyForNavigationResponse: ((WKWebView, WKNavigationResponse, @escaping (WKNavigationResponsePolicy) -> Swift.Void) -> Void)?
+
+// @available(iOS 8.0, *)
+// optional public func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Swift.Void)
+public var onDidReceiveChallenge: ((WKWebView, URLAuthenticationChallenge, @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Swift.Void) -> Void)?
+```
+
+
+
+#### When HTTPCookieStorage is updated
+
+```swift
+public var onUpdateCookieStorage: ((WKCookieWebView) -> Void)?
+```
+
+#### If you need to set WKWebViewConfiguration
+
+```swift
+let webView = WKCookieWebView(frame: frame, configurationBlock: { (configuration) in
+    // customize configuration
+})
+```
+
+## Authors
+
+Taeun Kim (kofktu), <kofktu@gmail.com>
+
+## License
+
+WKCookieWebView is available under the ```MIT``` license. See the ```LICENSE``` file for more info.