Changes to CLI usage documentation
Changes to CLI usage documentation

- Add git rows command docs
- Change rm -rf to dat clean
- Reorder dat import and include NDJSON

LinusU/dat,karissa/dat,eayoungs/dat,mattknox/dat,stamhe/dat,jqnatividad/dat,flyingzumwalt/dat,ajschumacher/dat,mcanthony/dat,FLGMwt/dat,waldoj/dat,yetone/dat,rjsteinert/dat,captainsafia/dat,delkyd/dat,RichardLitt/dat,adriagalin/dat,vfulco/dat,maxogden/dat