Provide usage examples

[agarie]

Using Distribution can be difficult at first. We should ease the learning curve by providing Getting Started-type documentation.

[jufemaiz]

Agreed.

[envp]

We'd need some help with this. Perhaps including usage examples in the current docs is a good idea @MohawkJohn ?

Also is it possible that I can add new labels indicating the difficulty / criticality level of the issue? Something like beginner, intermediate, hard, help-wanted would be good (as in NMatrix)