Update scheduling.md

scheduling.md

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 在完成每个实验中的OS代码后，通过执行 `git push` 命令来更新自己的实验专用 repos，并触发GitHub Classroom的CI测试。等一小会后，会看到自己的实验专用 repos 上面会有一个绿色的小勾，表示最新的提交通过了CI测试。如果看到的是红色的小叉，表面没有通过CI测试，你可以点击小叉，并进一步点击 GitHub Classroom Workflow/Autograding 的 details，进入自动测试的详细log记录页面，查看测试中具体在哪一步出现了问题，并尝试自己修复bug/更新功能，争取下一次通过测试。
-
-
-## Guide & Lab Test for Rust（第一阶段）
-- [清华计算机系大一学生2022暑期课程：Rust程序设计训练](https://lab.cs.tsinghua.edu.cn/rust/)
-- [learning rust guide](https://course.rs/)（Rust语言圣经）
-- [Rust-lang Lab Test based on Rustlings](https://classroom.github.com/a/YTNg1dEH)（采用Github Classroom模式的Rustling小练习）
-## Guide for OS
-- Guide deployed version can be found [here](https://learningos.github.io/rust-based-os-comp2022/)（精简OS实验指导，适合已经学过操作系统的过来人）
-- [rCore Tutorial v3 Guide](https://rcore-os.github.io/rCore-Tutorial-Book-v3/) (2022春季OS课程讲义，内容相对详细，适合没有学过操作系统的初学者)
-- [OS Course Slides in 2022 spring](https://learningos.github.io/os-lectures/)(2022春季OS课程Slides)
-- [训练营实验讲解videos](./relatedinfo.md#训练营rcore-tutorial和rustlings视频讲解)(训练营助教的实验详细讲解，适合参加本次训练营的学员)
-- [OS Course Videos in 2022 spring](./relatedinfo.md)(2022春季OS课程Videos，内容相对详细，适合没有学过操作系统的初学者)
-- [OS API Docs in 2022 spring](./relatedinfo.md)(2022春季OS课程实验中 ``cargo doc`` 生成的各章参考OS的API文档)
- 
-First, you can read [Guide](https://learningos.github.io/rust-based-os-comp2022/) to:
-- (Important) `git clone` this repo.
-- (Important) setup development environment.
-- (Important) setup classroom CI by `make setupclassroom`  (if you using githubclassroom to devel labs)
-- analyze and try os1 and os2 labs.
-- (Option) you can [use github classroom&code space to develop all os labs](https://learningos.github.io/rust-based-os-comp2022/chapter1/0intro.html#id4) just in a net browser.
-
-
-## os reference framework（第一阶段）
-The 'os[1-8]-ref' are the 'os[1-8]'  reference frameworks.  You can read and copy some codes into os[1-8]
-
-## kernel labs based on GitHub Classroom（第一阶段）
-There are two simple practice work, and five kernel labs.
-
-注：登录github.com，点击并打开下面的lab0~lab5的github classroom的链接后，点击醒目绿色按钮"Accept this assignment"选择接受，github就为你创建了一个对应实验的git repo
-
-According to the  [Guide](https://learningos.github.io/rust-based-os-comp2022/), write os codes for:
-- [lab0-0 setup env in 'os1' DIR](https://classroom.github.com/a/hnoWuKGF) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter1/0intro.html#id4)
-- [lab0-1 try something in os2 in 'os2' DIR](https://classroom.github.com/a/UEOvz4qO) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter2/0intro.html#id3)
-- [lab1 in 'os3' DIR](https://classroom.github.com/a/s1v7GyJM) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter3/0intro.html#id3)
-- [lab2 in 'os4' DIR](https://classroom.github.com/a/ghbB1wYX) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter4/0intro.html#id3)
-- [lab3 in 'os5' DIR](https://classroom.github.com/a/RxB6h4-x) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter5/0intro.html#id3)
-- [lab4 in 'os6' DIR](https://classroom.github.com/a/94eMW8zi) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter6/0intro.html#id3)
-- [lab5 in 'os8' DIR](https://classroom.github.com/a/zqGJEPK-) ：[Important NOTICE](https://learningos.github.io/rust-based-os-comp2022/chapter8/0intro.html#id5)
-
-注：lab0-0\lab0-1用于搭建线上或本地实验环境，以及熟悉"提交/CI等"的操作过程，基本上不需要编程。lab1~lab5是实际的OS实验内容，需要编程。
-### Check your results
-- lab1: `make test3` for lab1
-- lab2: `make test4`  for lab2 
-- lab3: `make test5`  for lab3
-- lab4: `make test6`  &&  `make test7` for lab4 
-- lab5: `make test8`  for lab5 
-
-### QA &Send issues
-
-There are some methods for common questions & problems, please read [QA](./QA.md).
-
-If  you meet any other new problems or some difficulties, please send issues to [Issues in rust-based-os-comp2022](https://github.com/LearningOS/rust-based-os-comp2022/issues)