mod and div now convert their operands

[greenfork]

This is a recent change Raku/problem-solving#326

So this paragraph seems outdated

raku-course/essentials/numbers/operations/index.md

Lines 54 to 62 in e107bc6

	Both `div` and `mod` expect integer operands. So, the following program will not work if you uncomment the lines marked as `Error`:
	```raku
	say 10.3 % 3; # OK
	# say 10.3 mod 3; # Error
	say 10.3 / 3.3; # OK
	# say 10.3 div 3.3; # Error
	```

[habere-et-dispertire]

We can make all the examples run and edit in-place with codeapi's playground. I see this as a fundamental step towards an explorable explanation.

A raku sandbox has been recently added following 2024.09.

@ash : how do you feel about this functionality ? I'm happy to do some work and make PRs. If codeapi doesn't load then by graceful degradation the static example remains.