Extend well-known discovery

[m-mohr]

Originates from Open-EO/openeo-hub#29

For the well-known discovery document, it may be helpful to add some more top-level fields, e.g. title and description.

[m-mohr]

I'm undecided about this. It is another place that you need to maintain a description in whereas the user may just look at the description of the newest version. I see that a title could still be useful though... @christophfriedrich

[m-mohr]

I think we can easily stick with the approach we use currently, it doesn't "bloat" the API so much with additional fields.
Well-known discovery just includes information that is important for selecting the appropriate version/instance of openEO. If clients want more information (e.g. title/description), they can connect to the most recent production-ready instance. I'll add some language regarding this to the API.