Tutorial examples demonstrating differences in internal-spaces behaviors

[bskinn]

IIRC, the default behavior for + quantity tokens is different in terms of the expectation of intervening spaces for numbers versus literals: numbers require spaces in between, whereas literals require NO spaces in between. This needs to be clearly documented.

There may be an issue posted for adding a token character that allows changing this behavior? Might be obsoleted by a feature allowing specification of a number format for #... though it may be useful to allow a user to require intervening whitespace in repeating literals, in certain cases of formatted output.