Documentation: Use of undocumented features within examples

[ARG-Helper]

In chapter 5.1 the expression *() is used to construct an empty list.
It should either be replaced with .end! or a chapter documenting the list-creation syntax-sugar should be added

[NoamDev]

That syntax sugar is explained in chapter 3.7: Recursive.
Right after the List type is presented.

[faiface]

Closing since the syntax is actually explained earlier.