update precourse

[sammou00]

• update suggested study
• update Delivrables
• update lesson plan
• update README.md
• I think we need to explain Deliverables, and check-ins issues and what the difference between them.
• open for a lesson plan, but normally coached by non-technical members

[talmurshidi]

I think we need to explain Deliverables, and check-ins issues and what the difference between them.

It is explained in README -> Learning Objectives -> HYF Workflows

[talmurshidi]

Maybe adding steps to edit the default terminal.
I added it for Windows user Git Bash install softwares

[sammou00]

yes, it is a good idea, git bash for Windows and also ZSH for Linux and old Mac.