readme and images

Author: Ryan Nystrom

README.md

@@ -1 +1,82 @@
-COMING SOON
+<p align="center">
+  <img src="/images/animation.gif" />
+</p>
+
+## Installation
+
+Just add `ContextMenu` to your Podfile and `pod install`. Done!
+
+```ruby
+pod 'ContextMenu'
+```
+
+## Usage
+
+Show the menu from one of your `UIViewController`s:
+
+```swift
+ContextMenu.shared.show(
+  sourceViewController: self,
+  viewController: MyContentViewController()
+)
+```
+
+You must provide a custom `UIViewController` to display in the menu. The only requirement is that you must set `preferredContentSize` to size your content.
+
+```swift
+class MyContentViewController: UIViewController {
+  override func viewDidLoad() {
+    super.viewDidLoad()
+    title = "Demo"
+    preferredContentSize = CGSize(width: 200, height: 200)
+  }
+}
+```
+
+<img src="/images/basic.png" />
+
+## Customizations
+
+### Display from a Source View
+
+Animate the menu out from a button or view. `ContextMenu` will take care of layout so that your menu doesn't clip the screen.
+
+```
+@IBAction func onButton(_ sender: UIButton) {
+  ContextMenu.shared.show(
+    sourceViewController: self,
+    viewController: MyContentViewController(),
+    sourceView: sender
+  )
+}
+```
+
+### Container Style & Display
+
+Use `ContextMenu.Options` to change the appearance of the containing view.
+
+```swift
+ContextMenu.shared.show(
+  sourceViewController: self,
+  viewController: MenuViewController(),
+  options: ContextMenu.Options(containerStyle: ContextMenu.ContainerStyle(backgroundColor: .blue)),
+  sourceView: button
+)
+```
+
+<img src="/images/blue.png" />
+
+There's plenty more you can customize with `ContextMenu.ContainerStyle`:
+
+- `cornerRadius`: The corner radius of the menu
+- `shadowRadius` and `shadowOpacity`: Appearance of the container shadow
+- `xPadding`, `yPadding`, `edgePadding`: Padding from the source view and screen edge
+- `overlayColor`: The color of the background
+- `motionEffect`: Respond to device gyroscope changes, similar to app icons on Springboard.app.
+
+If you want more customizations, we will gladly accept a Pull Request!
+
+## Acknowledgements
+
+- Heavy inspiration from [SlackTextViewController](https://github.com/slackhq/SlackTextViewController)
+- Created with ❤️ by [Ryan Nystrom](https://twitter.com/_ryannystrom)