Service Frequency Hover Over Info

[sidetrackedmind]

Issue

The route summary tab already has hover over info

^ the above is showing the hover over info for "Median Travel Time".
I'm wondering if we should add hover info for some of the items on "Service Frequency" tab. I'm thinking specifically about "Distribution of Bunches/Gaps". I'm not sure what that means.

I think it might even be handy for other "Service Frequency" tab items (even if they seem obvious to some of us).