h2
The second heading level, written ## at the start of a line. Holds rich text, as all four levels do.
Writing with it:Prose & headings
#Allowed in
#Examples
## Reading the residuals## What $r^2$ hidesThe second heading level, written ## at the start of a line. Holds rich text, as all four levels do.
## Reading the residuals## What $r^2$ hides