add examples for each

[rwtolbert]

add examples for each

[sogaiu]

The current loop examples use the phrase "in an unspecified order", may be that could work here too?

# prints values 1 and 2 in an unspecified order
(each x {:a 1 :b 2} (prin x)) # -> nil

[sogaiu]

Looks good!

I've made one minor edit.

[rwtolbert]

👍