Follow the scroll: update "active" entry in the sidebar

[jakub-g]

This is part two of #52

[ymeine]

I personally don't really like this kind of feature (or at least it should be a user preference if it could be so)

The thing is that when I'm reading an article, I often scroll past the end of the article, either to check quickly if there is something interesting after, or just to center the content vertically on my screen. So then I finish to read it, and want to share it. But crap, the URL changed!

Or also, sometimes I simply want to go back to the original anchor point that loaded the page, because I read a lot but don't want to scroll back. So I refresh the page, but the URL changed in the meantime...

[benouat]

I am a little bit puzzled by that one. I feel like @ymeine described.

I don't really see the need to have that one now that we have the sidebar that follow the scroll. If you want to share it, the link is just one click further...

So i would not go for that one. Sorry @jakub-g 😞

[jakub-g]

Ok I see your point. I've updated the PR so it now changes the color in the menu of the "active" item instead of pushing the hash

[ymeine]

Cool :)
Now next step: getting closer to gitbook :p