Suggestion: Multiple Examples of Haskell Code

### Feature request

It might present a better introduction to Haskell if there were a broader list of Haskell programs on display.

I'm the owner of this, for example:

https://www.github.com/haskript/big-book-of-small-haskell-projects

Including a ton of micro-projects that, unlike the exercise book I've been working through, show off Haskell's good side (expressive, strong types, concise code, decent, if sometimes impenetrable libraries) might be helpful for the Playground.