add slides about 20220705 meeting

Author: chyyuu

relatedinfo.md

@@ -43,5 +43,9 @@
 - [rustlings & OS lab0-0 搭建环境和初始开发过程](https://www.bilibili.com/video/BV1fY4y1n7up?share_source=copy_web)
 
 
+## 20220705"开源操作系统学习训练营开幕式" 相关slides
+
+- [2022年开源操作系统学习训练营安排：向勇](https://github.com/LearningOS/resrouce-on-rust-based-os-comp2022/blob/main/20220705-%E5%90%91%E5%8B%87-%E5%BC%80%E5%B9%95%E5%BC%8F%E4%B8%8A%E7%9A%84%E4%BB%8B%E7%BB%8D-v4.pdf)
+- [Rust学习与领域应用：张汉东](https://github.com/LearningOS/resrouce-on-rust-based-os-comp2022/blob/main/20220705-%E5%BC%A0%E6%B1%89%E4%B8%9C-Rust%E5%AD%A6%E4%B9%A0%E4%B8%8E%E9%A2%86%E5%9F%9F%E5%BA%94%E7%94%A8.pptx)
 
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