add CHANGELOG

CHANGELOG_CN.md

@@ -0,0 +1,22 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+- 添加 art.isInput 属性，当为 true 的时候不自动隐藏控制栏，如弹幕正在输入时
+- 弹幕库监听 resize 事件，当输入框少于 150px 时，自动隐藏弹幕输入框
+- 修复弹幕输入框的固定宽度 bug
+
+## [4.4.0] - 2022-05-15
+
+### Added
+- 设置面板支持 switch 和 onSwitch 选项
+- 弹幕库插件添加设置面板和弹幕发送
+- 弹幕库的选项添加默认模式和默认字号
+- 弹幕库字号支持按播放器的百分百
+- 修复翻转设置的图标缺失
+- 默认播放器获取了焦点后，不会自动隐藏控制栏
+- 删除字幕开关按钮，需要自行配置字幕开关

CONTRIBUTING.md

@@ -0,0 +1,19 @@
+This project uses `parcel` as a development and packaging tool, so there are few overall configuration options
+
+## 1. Install dependencies
+
+```base
+npm install && npm run bootstrap
+```
+
+## 2. Develop the project and open the demo page
+
+```base
+npm run dev
+```
+
+## 3. Package the project
+
+```base
+npm run build
+```