Add intro text to the README

Describe the plugin and current limitations.

README.md

@@ -5,27 +5,61 @@
 A video.js plugin that plays HLS video on platforms that don't support it but have Flash.
 
 ## Getting Started
-Download the [production version][min] or the [development version][max].
-
-[min]: https://raw.bithub.com/dlapalomento/video-js-hls/master/dist/videojs-hls.min.js
-[max]: https://raw.bithub.com/dlapalomento/video-js-hls/master/dist/videojs-hls.js
-
-In your web page:
+Download the [plugin](https://raw.github.com/videojs/videojs-contrib-hls/master/dist/videojs-hls.min.js). On your web page:
 
 ```html
 <script src="video.js"></script>
-<script src="dist/videojs-hls.min.js"></script>
+<script src="videojs-hls.min.js"></script>
 <script>
   var player = videojs('video');
-  player.hls();
+  player.hls('http://example.com/video.m3u8');
+  player.play();
 </script>
 ```
 
 ## Documentation
-_(Coming soon)_
+(HTTP Live Streaming)[https://developer.apple.com/streaming/](HLS) has
+become a de-facto standard for streaming video on mobile devices
+thanks to its native support on iOS and Android. There are a number of
+reasons independent of platform to recommend the format, though:
+
+- Supports (client-driven) adaptive bitrate selection
+- Delivered over standard HTTP ports
+- Simple, text-based manifest format
+- No proprietary streaming servers required
+
+Unfortunately, all the major desktop browsers except for Safari are
+missing HLS support. That leaves web developers in the unfortunate
+position of having to maintain alternate renditions of the same video
+and potentially having to forego HTML-based video entirely to provide
+the best desktop viewing experience.
+
+This plugin attempts to address that situation by providing a polyfill
+for HLS on browsers that have Flash support. You can deploy a single
+HLS stream, code against the regular HTML5 video APIs, and create a
+fast, high-quality video experience across all the big web device
+categories.
+
+The videojs-hls plugin is still working towards a 1.0 release so it
+may not fit your requirements today. Specifically, there is _no_
+support for:
+
+- Alternate audio and video tracks
+- Subtitles
+- Dynamic bitrate switching
+- Segment codecs _other than_ H.264 with AAC audio
+- Live streams
+- Internet Explorer 8
 
-## Examples
-_(Coming soon)_
+## Hosting Considerations
+Unlike a native HLS implementation, the HLS plugin has to comply with
+the browser's security policies. That means that all the files that
+make up the stream must be served from the same domain as the page
+hosting the video player or from a server that has appropriate [CORS
+headers](https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS)
+configured. Easy [instructions are
+available](http://enable-cors.org/server.html) for popular webservers
+and most CDNs should have no trouble turning CORS on for your account.
 
 ## Release History
 _(Nothing yet)_