New concept (numbers) and exercise (assembly-line)

A review would be appreciated.

The else clause is required in jq v1.6.

Should this be “starting in jq v1.6”? As it currently reads, it suggests else is only required in that specific version.

“up to” would be the most accurate I guess: in the current dev manual, else is not required, and defaults to else .

https://stedolan.github.io/jq/manual/v1.6/#if-then-else
vs
https://stedolan.github.io/jq/manual/#if-then-else