"elements" -> "constants" in Algebra.Morphism.Structures

[mechvel]

In Algebra.Morphism.Structures
it is written in many places in comments expressions like
"-- unary operation & 1 element "
"-- ... & 2 elements"

Probably the author meant "1 constant", "2 constants" ...
Because the above structures may have many elements built over the specified constants.

[JacquesCarette]

Yes, that's right. Feel free to submit a PR making that change.

[mechvel]

I had difficulties with PR. I meant that the command could somehow insert this in the next version.
And if this is also difficult for the command, then let it remain.