update README

README.md

@@ -1,2 +1,29 @@
-# ComposeVideoPlayer
-一个视频播放器，使用Jetpack Compose对于Exoplayer进行的封装
+# Compose Video Player
+
+一个视频播放器，使用Jetpack Compose基于Exoplayer进行的封装
+
+## 简单使用
+
+```kotlin
+val playerState = rememberVideoPlayerState()
+
+VideoPlayer(
+    url = "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4",
+    playerState = playerState,
+) {
+    VideoPlayerControl(
+        state = playerState,
+        title = "Elephant Dream",
+    )
+}
+```
+
+更详细的使用参考[VideoPlayScreen](app/src/main/java/com/example/composevideoplayer/VideoPlayScreen.kt)
+
+## 应用截图
+
+![player](Screenshots/player.jpg)
+
+## 参考开源
+
+本项目是在[compose-video-player](https://github.com/imherrera/compose-video-player)的基础上进行开发的