[Content] Rewrite git content

[fcaroline2020]

Which module(s) and week(s) does this change affect?
Module(s): 1
Week(s): 1

Content here

What is the work that needs to be done?

• Check if Terminal is introduced in ITD (if not add)
• check if a git intro is included in ITD (if not add)
• add link to instructions on how to install git

Why is this work important to do?

Additional context

There is a project to learn about git at some point in the module:
https://github.com/CodeYourFuture/Module-User-Focused-Data/tree/main/Wireframe

Who might need to know about this change?