Here's a patch that adds the list of classes with a minimal description before the table.
I grouped a few classes to save some space. Container, Hashable, Sized, Callable could be grouped too.
I also added links to the methods and to glossary terms (the `set` term is missing from the glossary though).
The methods listed in the table can be turned to links too.
(The :meth:`__len__ <__len__>` markup is to hide the () after the __method__.)