if you wanna contribute, the easiest way is to help write tests !
removing usless whitespace in .cabal file
starting "api-guide" document to help characterize the current api surface, will also be later used to write further documentation / tutorials
still playing around with the design for the SparseBuilder typeclass and associated operations.
Currently its not quite right. thinking that adding a (form~ContiguousFormat form)=> constraint would make things A LOT better