Add a blurb about Debian being explicitly and intentionally minimal

[tianon]

Also, add more notes and a few links to help explain what "minimal" means in this context (and who decides it).

Closes debuerreotype/docker-debian-artifacts#15

@paultag if/when you have a moment (it's not terribly long), would you be willing to review this too? 😇 ❤️ 🙇

[tianon]

I contemplated adding an explicit example of buildpack-deps:bookworm-curl for folks who want ca-certificates and/or wget/curl, but I'm torn on whether that's worth including here.

[justinmchase]

This may add a nice highlight effect to really call it out.

Suggested change

	The images in this repository are intended to be as minimal as possible (because of the immutable/layered nature of containers, it's much easier to add than it is to remove). More specifically, they're built from [the "minbase" variant](https://manpages.debian.org/stable/debootstrap/debootstrap.8.en.html#variant=minbase_buildd_fakechroot), which only installs "required" packages, and thus creates the smallest possible footprint that is still "Debian" (as defined/managed by [the Release and FTP teams](https://www.debian.org/intro/organization#distribution) within the project).
	> [!NOTE]
	> The images in this repository are intended to be as minimal as possible (because of the immutable/layered nature of containers, it's much easier to add than it is to remove). More specifically, they're built from [the "minbase" variant](https://manpages.debian.org/stable/debootstrap/debootstrap.8.en.html#variant=minbase_buildd_fakechroot), which only installs "required" packages, and thus creates the smallest possible footprint that is still "Debian" (as defined/managed by [the Release and FTP teams](https://www.debian.org/intro/organization#distribution) within the project).

It would look like this:

Note

The images in this repository are intended to be as minimal as possible (because of the immutable/layered nature of containers, it's much easier to add than it is to remove). More specifically, they're built from the "minbase" variant, which only installs "required" packages, and thus creates the smallest possible footprint that is still "Debian" (as defined/managed by the Release and FTP teams within the project).

[tianon]

Unfortunately the target of this is Docker Hub, not GitHub, and that's a GitHub-specific markup.

[paultag]

Looks great to me!