Summarize PDF Highlights wishlist

[pete31]

The current way is not really useful

@pete31

I‘m not sure what’s the benefit of using CriticMarkup here as CriticMarkup only supports one highlighting color, but PDF annotation highlights of course support any color. So what we currently get is a „Summarize Highlight“ Markdown output that shows all highlights in yellow, no matter if the actually used highlight color was red, blue or pink.