List of interesting objects / regions

[cdeil]

We should have a curated list of interesting objects or regions.

For now it could just be a list of source names in the docs, e.g.

• Crab nebula
• Galactic center
• Vela pulsar

Then later once we have a router these should be links to that view.

And even later, we could have a "guided tour" like http://www.worldwidetelescope.org/ for certain sub-classes of gamma-ray sources (e.g. pulsars, SNRs, AGN, ...) or regions (e.g. Galactic center, Vela region, Cygnus region) that are interesting.

But I think maybe starting a "tutorial" or "getting started" in the docs with just some instructions what to try could be a good first step.