Update document

Author: BB9z

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright © 2020-2021 BB9z
+Copyright © 2020-2022 BB9z
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -4,13 +4,12 @@
 [![Swift Package Manager](https://img.shields.io/badge/spm-compatible-F05138.svg?style=flat-square)](https://swift.org/package-manager)
 [![Build Status](https://img.shields.io/github/workflow/status/b9swift/Action/Swift?style=flat-square&colorA=555555&colorB=F05138)](https://github.com/b9swift/AssociatedObject/actions)
 [![gitee 镜像](https://img.shields.io/badge/%E9%95%9C%E5%83%8F-gitee-C61E22.svg?style=flat-square)](https://gitee.com/b9swift/AssociatedObject)
-[![GitHub Source](https://img.shields.io/badge/Source-GitHub-24292F.svg?style=flat-square)](https://github.com/b9swift/AssociatedObject)
 
-Objective-C associated value wrapper in Swift.
+Objective-C associated value wrapper for convenient use in Swift. It is primarily used to add attributes to existing types through extensions.
 
 ## Installation
 
-Using Swift Package Manager or import manually.
+You can use either Swift Package Manager or manual importing to add this package to your project.
 
 你也可以使用 [gitee 镜像](https://gitee.com/b9swift/AssociatedObject)。
 

Sources/B9AssociatedObject/B9AssociatedObject.swift

@@ -1,7 +1,7 @@
 /*
  B9AssociatedObject.swift
 
- Copyright © 2020-2021 RFUI.
+ Copyright © 2020-2022 BB9z.
  https://github.com/b9swift/AssociatedObject
 
  The MIT License
@@ -11,9 +11,10 @@
 import Foundation
 
 /**
- Objective-C associated value wrapper.
+ Objective-C associated value wrapper for convenient use in Swift.
+ It is primarily used to add attributes to existing types through extensions.
 
- Usage
+ Usage:
 
  ```
  private let fooAssociation = AssociatedObject<String>()