replace hero image/fonts on https://plot.ly/graphing-libraries/

[nicolaskruchten]

Here's the spec and the asset:

[nicolaskruchten]

Also: let's remove the breadcrumbs from the main landing page here plz

[nicolaskruchten]

You know what, let's remove all the "Additional Resources" from this page also please.

[nicolaskruchten]

Hey @jdamiba for the hero it looks like the issue is that the asset graphic contains some artifacts along the edges... if you just re-crop it a few pixels you should be good.