Can we move the examples in this repo (that are not part of the spec) either to the learn site or to the spec site (run from gh-pages, but see #3717 for how that is likely to change).

Going through all of the open issues just now (again), it's confusing to sort out the issues on examples in the spec from the issues about the examples directory from the general examples issues that we all agree should go on the learn site. It would really help with issue curating if all of the outside-of-spec examples lived in one place.