update information on the LitCal project

[JohnRDOrazio]

No description provided.

[igneus]

Thanks for the update, but I certainly won't merge it as is. Individual entries of the list should be kept concise, usually fitting within a single line when viewed on a desktop screen, summarizing in few words what each app/library is all about, not attempting to enumerate its features. Nested list of related projects is a no-go. Some of the apps from the nested list possibly qualify for a top-level entry of their own right, as long as they are able to "generate a complete and mostly correct calendar for any year" (even if only as consumers of a data API).

[JohnRDOrazio]

Ok I split the LitCal project into 3 top level projects, instead of nested lists. Does this work better?