V1 Docs: Update instructions on creating a project from an existing one

[Erin-Cecele]

Before proceeding, check to make sure there isn’t an existing issue for your suggestion or a similar one.

• I have searched the existing issues and determined this is new suggestion.

Idea being proposed

My rough notes:

Quire new my project + git clone address (of repo you want to clone) should end in .git

This will override anything in the templates (those customizations will be gone)

This action will clone content directory, skip javascript and computed data, overwrite styles folder and variables changes

If you made changes in any of those place you will need to manually copy them

You can also use this clone technique with a local file path. It has to be a git repository but doesn’t need to be GitHub

What contribution category does your proposal fall under?

Propose/write new section

Supporting Information

Maybe it should go in Get Started - new project based on existing project

Update an existing project