Add short Cassaforte recipe

Cassandra has so many concepts that are quite difficult and won't even fit into a single chapter, so I decided to leave only very basic operations. 

I assume that we should try to keep recipes quite short to allow people just have a very quick start / overview / toolchain rather than describe all the quirks of distributed databases.

If you think that I can add more content, I can :) although it seems that shortest thing (pagination) will take at least 20 lines :)