Initialise git repo

[nataliecarey]

What

When we create a kit for a user we don't currently initialise a git repository, that means that most of our users will need to do that for themselves. They're likely to do so after making some of their own changes which will make it harder for them to look back and see what changes they made vs the kit that was generated for them.

Why

It will save users from needing to remember to initialise it themselves, this is something I believe most users would benefit from and there is very little downside for users who don't use the functionality

Who needs to work on this

• Developer

Who needs to review this

• Developer

Done when

• Git is initialised by default with an initial commit
• Users can opt-out of git with a flag like --version-control=none
• If user doesn't have git installed create still happens successfully
• If user has already initialised git repo create still happens successfully, but without commit

[ruthhammond]

Questions

• Does this need to be documented? If yes, where should it be documented?
• If they don't have Git installed, should we warn them that they don't?

[ruthhammond]

Final decision needed whether this is for v13 or later.
Not entirely sure whether this is a breaking change.

[ruthhammond]

Would this be expected behaviour? Apparently some other products do this e.g. React. @nataliecarey please document some examples of where this happens