* Add ids to headers so they can be linked to
* Make header ids more general
Rather than including the identifier in the name of the id, use a simpler more generic id.
* H3=>H2 for Modules/Resources/Functions/Package Details headings
This way, on individual resource/function pages, it doesn't make it look like "Package Details" is a sub heading under "Supporting Types" in the right-hand "ON THIS PAGE".