Maintain scroll position in documentation index

[davidoliverSP2]

Is your feature request related to a problem? Please describe.
I'm frustrated when I scroll down the docs content on the LHS, click on a section and the content section auto scrolls back to the top. This makes clicking through items in a particular section involve a lot of scrolling.

Describe the solution you'd like
Maintain scroll position of index after click

Describe alternatives you've considered
n/a
Additional context
Particularly relevant for APOC documentation which can have some very long sections