Nested lists remove bottom margin

Lists have a margin on the bottom. But a list inside a list does not. This almost always looks bad.


Before working on this, I recommend looking through the docs and finding many examples of nested lists --- simple nested lists, lists inside paragraphs inside lists, etc. It may be worthwhile to create an ad-hoc list examples page for testing. We want nested lists to have sensible and consistent spacing. We do not want some of them to suddenly have double (or more) spacing.

The issue does not name a file or test. Start by reviewing the Sphinx documentation source and rendered examples, comparing simple nested lists with lists inside paragraphs. Done means nested lists have sensible, consistent spacing without unexpected double spacing.

Written by the indexing model from the issue text.