docs(00-prepare): 📝 add dev and 05-advanced branch (#29)

* docs(00-prepare): 📝 add `dev` branch

* docs(00-prepare): 📝 add `05-advanced` branch

Author: Timothy-Liuxf

docs/00-prepare/guidance.md

@@ -346,10 +346,12 @@ dotnet test -c Release
 本工程中，每一个章节对应一个单独的 Git 分支。分支如下：
 
 + `main`
++ `dev`
 + `homework/01-basic`
 + `homework/02-multithreading`
 + `homework/03-async-grpc`
 + `homework/04-avalonia`
++ `homework/05-advanced`
 
 **EESAST 仓库的分支将在作业提交期间进行开放，其余时间不开放。**