Include anchor within the bookmark

Hi, this is a great plugin!

I don’t know if this is more of a feature request than a support issue?

We have some very long pages. We would like users to be able to add bookmarks to the Anchors which allow people to navigate vertically.

Currently when the bookmark button is clicked it just saves the page slug, rather than including the anchor as well.

so

myreallylongwebpage.com/

rather than

myreallylongwebpage.com/#anchor1
myreallylongwebpage.com/#anchor2

etc.