Also modify the categories given implicitly in the Python
file and make them explicit in the docs.
Most users are going to want to use `randint` or `random`, so
that basic category comes first.
Also remove the tip boxes. The entire documentation consist of tips of
one form or another.
Boxes should only be used when necessary such as safety reasons (warnings)
or to prevent costly/time consuming mistakes (notes/tips).
Move it do a dedicated example instead of hardcoding it in the module docstring.
Also update changelog for missing previous changes while we are at it.
Laurens Valk
David Lechner