Notation Guide
Sections
ALL
Text Formatting
Headings
Text Breaks
Links
Lists
Images
Tables
Advanced Formatting
Confluence Content
External Content
Misc
Text Breaks

Most of the time, explicit paragraph breaks are not required - Confluence will be able to paginate your paragraphs properly

Notation Comment
(empty line) Produces a new paragraph
\\ Creates a line break. Not often needed, most of the time Confluence will guess new lines for you appropriately.
---- creates a horizontal ruler
--- Produces — symbol.
-- Produces – symbol.