Add link(s) to explore section

[edan-bainglass]

@giovannipizzi can you please say more what you had in mind? I'm not sure if you mean more beyond linking some data to the explorer. If so, we could do this at least for the bands data, which is currently node-based.

[giovannipizzi]

Yes, just have a couple of links to explore, if/where possible/sensible, with the same style as in mc3d for consistency