Add information about `play 1..2` syntax to help
Add information about `play 1..2` syntax to help

Also, improve some code formatting.

Signed-off-by: Kyrylo Silin <6129bf6f04030cd1423e4f3df28402e79fbf30a4@gmail.com>

85x14/pry,gfvcastro/pry,tdg5/pry,nju520/pry,ooohiroyukiooo/pry,nju520/pry,raeno/pry,scalixte-mdsol/pry,josue804/debunker,shockone/pry,nju520/pry,shockone/pry,sideci-sample/sideci-sample-pry,bronzdoc/pry,ooohiroyukiooo/pry,ngpestelos/pry,jasonm23/pry,sferik/pry,icebreaker/pry,85x14/pry,85x14/pry,bronzdoc/pry,gfvcastro/pry,geoffreylitt/pry,tdg5/pry,shockone/pry,caporta/pry,pvdb/pry,scalixte-mdsol/pry,sferik/pry,jasnow/pry,josue804/debunker,pvdb/pry,caporta/pry,caporta/pry,printercu/pry,ngpestelos/pry,richo/pry,jasonm23/pry,jasonm23/pry,printercu/pry,raeno/pry,geoffreylitt/pry,deivid-rodriguez/pry,jasnow/pry,scalixte-mdsol/pry,raeno/pry,tdg5/pry,jasnow/pry,ooohiroyukiooo/pry,icebreaker/pry