A heading for a section in the usage, created by the jack.heading() method.
First heading is always level 1, subsequent headings default to 2.
The level of the nearest heading level sets the indentation of the description that follows.
Optional
A heading for a section in the usage, created by the jack.heading() method.
First heading is always level 1, subsequent headings default to 2.
The level of the nearest heading level sets the indentation of the description that follows.