Describe the bug
The markdown file, docs/userguide/best-practices.md, uses 3-space indentation for nested lists. causing a nested list to appear flat in https://www.utplsql.org/utPLSQL/develop/userguide/best-practices.html#writing-tests

The indentation specification for Markdown Lists at Daring Fireball used by mkdocs says:

List items may consist of multiple paragraphs. Each subsequent paragraph in a list item must be indented by either 4 spaces or one tab