Improve list of benchmarks

[AndreaCossu]

The benchmarks are currently describe as a list. We should put together a more comprehensive and detailed view.
A table, or a more complex visualization in which, for each benchmark, we list multiple features (like CL scenario in which it can be used, type of data, possible applications and so on).

This is an example. The main problem there is to maintain updated the best accuracy. Due to the different CL scenarios available it would require a lot of effort.