refresh client-in-5-minutes.md

[juhp]

It would be nice if the client-in-5-minutes.md blog post could be refreshed to current servant.
AFAICT the code dates from around servant 0.4 (LTS 5), so it is not that easy to build any more.

[juhp]

Well I managed to get servant-examples:hackage to build using stack --resolver lts-5.

[juhp]

Well another source of examples might be some of the consumers of servant-client and servant-client-core.

Also found https://docs.servant.dev/en/stable/tutorial/Client.html

[alpmestan]

FWIW, everything in the readthedocs pages in checked in CI (each page of the tutorial and cookbook is a literate haskell file) so it should be up-to-date, but the rest is quite likely to be waaaay out of date indeed.

[juhp]

Okay I dunno if it is better to hide https://www.servant.dev/client-in-5-minutes.html more then:
it is the first item under External Tutorials and Blog Posts on this top page.

[alpmestan]

This will be up to @dmjio @fisx and @arianvp. I just wanted to clarify what's checked in CI and what isn't.