[FIX]fix course link

docs/必学工具/tools.md

@@ -2,11 +2,17 @@
 
 ## 下载工具
 
-- [Libgen](http://libgen.is/): PDF电子书下载网站。
+- [Sci-Hub](https://sci-hub.se/): Elbakyan 女神向你挥手，旨在打破知识壁垒的革命性网站。
-- [z-epub](https://z-epub.com/): ePub电子书下载网站。
+- [Library Genesis](http://libgen.is/): 电子书下载网站。
-- [bitdownloader](https://bitdownloader.io/): 油管视频下载器。
 - [zlibrary](https://singlelogin.me/): 电子书下载网站(目前仅在 [Tor](https://www.torproject.org/) 运行)。
+- [Z-ePub](https://z-epub.com/): ePub 电子书下载网站。
 - [PDF Drive](https://www.pdfdrive.com/): PDF 电子书搜索引擎。
+- [MagazineLib](https://magazinelib.com/): PDF 电子杂志下载网站。
+- [BitDownloader](https://bitdownloader.io/): 油管视频下载器。
+- [qBittorrent](https://www.qbittorrent.org/download.php): BitTorrent 客户端。
+- [uTorrent](https://www.utorrent.com): BitTorrent 客户端。
+- [全国标准信息公共服务平台](https://std.samr.gov.cn/)：各类标准查询和下载官方平台。
+- [标准知识服务系统](http://www.standards.com.cn/)：检索与阅读所需标准。
 
 ## 设计工具
 
@@ -17,6 +23,7 @@
 - [iconfont](https://www.iconfont.cn/): 国内最大的图标和插画资源库，可用于开发或绘制系统架构图。
 - [turbosquid](https://www.turbosquid.com/): 可以购买各式各样的模型。
 - [flaticon](https://www.flaticon.com/): 可下载免费且高质量的图标。
+- [标准地图服务系统](http://bzdt.ch.mnr.gov.cn/): 可以下载官方标准地图。
 
 ## 编程相关
 

docs/计算机图形学/15462.en.md

@@ -12,11 +12,10 @@ This course provides a comprehensive introduction to computer graphics. It focus
 
 ## Course Resources
 
-- Course Website: [http://15462.courses.cs.cmu.edu/fall2020/](http://15462.courses.cs.cmu.edu/fall2020/)
+- Course Website: [http://15462.courses.cs.cmu.edu/fall2022/](http://15462.courses.cs.cmu.edu/fall2022/)
 - Recordings: [Youtube](https://www.youtube.com/watch?v=W6yEALqsD7k&list=PL9_jI1bdZmz2emSh0UQ5iOdT2xRHFHL7E&index=1)
 - Textbooks: There is no required textbook for 15-462, though a variety of books may provide good supplementary material:
     - [Fundamentals of Computer Graphics. A K Peters, 2009](http://www.amazon.com/Fundamentals-Computer-Graphics-Peter-Shirley/dp/1568814690)
     - [Computer Graphics: Principles and Practice](http://www.amazon.com/Computer-Graphics-Principles-Practice-3rd/dp/0321399528/ref=sr_1_2?s=books&ie=UTF8&qid=1440872554&sr=1-2&keywords=foundations+of+3d+computer+graphics)
     - [Physically Based Rendering: From Theory to Implementation](http://www.amazon.com/gp/product/0123750792?ie=UTF8&tag=pharr-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0123750792)
-- Assignments: [http://15462.courses.cs.cmu.edu/fall2020/exercises](http://15462.courses.cs.cmu.edu/fall2020/exercises)
+- Assignments: refer to the course website
-

docs/计算机图形学/15462.md

@@ -12,7 +12,7 @@
 
 ## 课程资源
 
-- 课程网站：[http://15462.courses.cs.cmu.edu/fall2020/](http://15462.courses.cs.cmu.edu/fall2020/)
+- 课程网站：[http://15462.courses.cs.cmu.edu/fall2022/](http://15462.courses.cs.cmu.edu/fall2022/)
 - 课程视频：
     - [Youtube](https://www.youtube.com/watch?v=W6yEALqsD7k&list=PL9_jI1bdZmz2emSh0UQ5iOdT2xRHFHL7E&index=1)
     - [bilibili](https://www.bilibili.com/video/BV1QZ4y1K7ga)
@@ -20,4 +20,4 @@
     - [Fundamentals of Computer Graphics. A K Peters, 2009](http://www.amazon.com/Fundamentals-Computer-Graphics-Peter-Shirley/dp/1568814690)
     - [Computer Graphics: Principles and Practice](http://www.amazon.com/Computer-Graphics-Principles-Practice-3rd/dp/0321399528/ref=sr_1_2?s=books&ie=UTF8&qid=1440872554&sr=1-2&keywords=foundations+of+3d+computer+graphics)
     - [Physically Based Rendering: From Theory to Implementation](http://www.amazon.com/gp/product/0123750792?ie=UTF8&tag=pharr-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0123750792)
-- 课程作业：[http://15462.courses.cs.cmu.edu/fall2020/exercises](http://15462.courses.cs.cmu.edu/fall2020/exercises)
+- 课程作业：参见课程主页

mkdocs.yml

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