`$@` (Variable properties) should be documented

Under maps, section named: Using variable variables in lookups references lookups, not maps, so when I tried to apply it, the code looks like this

@foods: {
    dessert: ice cream; // Turn into a map
};
@key-to-lookup: dessert;
.lunch {
    treat: @foods[@@key-to-lookup];
}

Compilation result: variable @dessert not found. So if variable variables are not applicable to the new Maps, it should be removed from documentation.

Start by locating the Maps section and the subsection titled “Using variable variables in lookups,” then compare its example with the reported compilation result. Done means the documentation accurately states whether variable variables apply to Maps, with the misleading material corrected or removed.