Fix link to site in README

[NickleDave]

as discussed in #75

I think it will be
https://dev-review.readthedocs.io/en/latest/
but not absolutely sure because that currently does not build anything -- it's "building" a Sphinx site that doesn't exist in the main branch, and won't until we merge in #75

[NickleDave]

Done in 08eb9e2

I committed directly to main, que Dios me perdone