Proposal on html HEADING elements

[Kaseluris, Nikos]

Hi

I think we must expand the H1-H6 elements to include ALL one-digit 
numbers, to: H0-H9.

H0-element we need for the title of the document INSIDE the 
body-element. In html5 docs, inside the header-element.
The H7-H9-elements we need only in very few cases, but they exist!!!

I am the creator of the "TableOfContents" chrome extension and from this 
view-point I propose the above.

Kaseluris-Nikos-1959