Write practice exercises.

[glennj]

This issue can be a place where we can talk about which exercises to implement.

It might be a good idea, if someone decides to tackle an exercise, then create an issue for it and self-assign to claim ownership.

[glennj]

Exercises I think will be a good showcase for what awk does best.

• rectangles
• ocr numbers
• grep (obvs)
• tournament
• bowling
• markdown (it's a refactoring exercise: very tedious to create)
• gigasecond
• anagram
• word count
• queen attack
• pig latin
• knapsack
• forth
• list operations (maybe just to see if awk can do it nicely)
• resistor colour series
• grade school
• wordy

Those are the ones that jumped out do me.

[glennj]

As of now, there are 26 exercises merged to main, and another 4 in review.

Closing.