[Haskell-beginners] basic use of Applicative

[Imants Cekusins]

> Breadcrumb tutorials [1] have a similar approach; maybe you could
collect yours and list them in a single web page, it would be
easier to navigate.

> [1] https://acm.wustl.edu/functional/hs-breads.php

Interesting. I did not see it before. Thank you for the link.

If anyone wants to use these snippets - modified or not - they are
free and welcome to do so. Don't blame me though.