~fancycade/nrg

Changed scripts to commands

scripts turns out was already taken by shards for things
* commands is more semantic anyway

Readme updates
Document format
Add special command 'format' to run crystal tool format
Actually add it to .gitignore
Add nrg to gitignore
Update name to nrg
Add scripts field to shards.yml.

Update README
Add ability to input args

Args are denoted as ?1 ?2
Fix README
README updates
Intial commit