Any chances of manual, at least on site getting index and links, using a href and a anchor html tags? I mean, it would make it easier than having to scroll down in order to get to the section you're interested with.

Not exactly what you're asking but YellowAfterlife made this a while back:

https://dl.dropboxusercontent.com/u/3594143/yal.cc/r/picodoc/index.html
https://www.lexaloffle.com/bbs/?tid=1906

Needs a minor update for newest additions.

Oh and Neko250 made this one:

http://neko250.github.io/pico8-api/
https://www.lexaloffle.com/bbs/?tid=2687

(Also no anchors, also needs a minor update.)

I use the neko250 one! Great stuff.

I'll try to find time to do one for Dash document viewer.