Add "Haskell Tutorial and Cookbook" (#8987)

books/free-programming-books-langs.md

@@ -878,6 +878,7 @@ That section got so big, we decided to split it into its own file, the [BY SUBJE
 * [Haskell](https://en.wikibooks.org/wiki/Haskell) - Wikibooks
 * [Haskell no panic](http://lisperati.com/haskell/) - Conrad Barski
 * [Haskell Notes for Professionals](https://goalkicker.com/HaskellBook/) - Compiled from StackOverflow documentation (PDF)
+* [Haskell Tutorial and Cookbook](https://markwatson.com/books/haskell-cookbook-site/) - Mark Watson
 * [Haskell web Programming](http://yannesposito.com/Scratch/fr/blog/Yesod-tutorial-for-newbies/) (Yesod tutorial)
 * [Learn Haskell Fast and Hard](http://yannesposito.com/Scratch/en/blog/Haskell-the-Hard-Way/) - Yann Esposito
 * [Learn You a Haskell for Great Good](http://learnyouahaskell.com) - Miran Lipovaca