Sections should be introduced with the HTML heading elements (H1-H6).
NOT a Section 508 requirement, but is a W3C recommendation
W3C Checkpoint 3.5
"Sections should be introduced with the HTML heading elements (H1-H6)"
H2 elements should follow H1 elements, H3 elements should follow H2
elements, etc. Content developers should not "skip" levels
(e.g., H1 directly to H3)."
Change the header elements so they appear in sequence <H1>, <H2>, <H3>.
As of 1.4.0, <H2> appears on the Overview page, each package page
contains <H2>, and each class page contains <H2> and <H3>.
This can be fixed by changing the overview page to <H1>, as that
contains the title of the entire document.
Because doing this will increase the size of the overview title font,
it is important to also add a style definition to set its font sizes
to be similar in size to the existing Javadoc output.