Update installation instructions
Update installation instructions

s/npm install knex/npm install bookshelf/
patbenatar/bookshelf,zdespolit/bookshelf,shaunstanislaus/bookshelf,offlinehacker/bookshelf,sanchesic89/bookshelf,MadcapJake/bookshelf,jadengore/bookshelf,rbong/bookshelf,zdespolit/bookshelf,skevy/bookshelf,tbutman/bookshelf,tgriesser/bookshelf,dougshamoo/bookshelf,vellotis/bookshelf,TNuzzi/bookshelf,mdboop/bookshelf,offlinehacker/bookshelf,nodeonly/bookshelf,joshturn/bookshelf,shadedprofit/bookshelf,chuym/bookshelf,jadengore/bookshelf,rbong/bookshelf,sanchesic89/bookshelf,seegno-forks/bookshelf,skevy/bookshelf,chrisbroome/bookshelf,stonegithubs/bookshelf,mdboop/bookshelf,lanetix/bookshelf,TNuzzi/bookshelf,nodeonly/bookshelf,mdboop/bookshelf,cspotcode/bookshelf,apla/bookshelf,TinOo512/bookshelf,zubeio/bookshelf,joshturn/bookshelf,tbutman/bookshelf,tgriesser/bookshelf,tjwudi/bookshelf,VideoAmp/bookshelf,seegno-forks/bookshelf,TNuzzi/bookshelf,TinOo512/bookshelf,shaunstanislaus/bookshelf,sanchesic89/bookshelf,chuym/bookshelf,nodeonly/bookshelf,vellotis/bookshelf,bookshelf/bookshelf,shaunstanislaus/bookshelf,bsiddiqui/bookshelf,VideoAmp/bookshelf,bookshelf/bookshelf,MadcapJake/bookshelf,stridentbean/bookshelf,princesust/bookshelf,zdespolit/bookshelf,cspotcode/bookshelf,shadedprofit/bookshelf,zubeio/bookshelf,tbutman/bookshelf,jordansexton/bookshelf,chrisbroome/bookshelf,zubeio/bookshelf,sxhao/bookshelf,chuym/bookshelf,sxhao/bookshelf,VideoAmp/bookshelf,dougshamoo/bookshelf,patbenatar/bookshelf,tjwudi/bookshelf,apla/bookshelf,jordansexton/bookshelf,bsiddiqui/bookshelf,vellotis/bookshelf,MadcapJake/bookshelf,offlinehacker/bookshelf,skevy/bookshelf,tjwudi/bookshelf,shadedprofit/bookshelf,stridentbean/bookshelf,lanetix/bookshelf,lanetix/bookshelf,princesust/bookshelf,jadengore/bookshelf,princesust/bookshelf,stonegithubs/bookshelf,dougshamoo/bookshelf,patbenatar/bookshelf,stridentbean/bookshelf,sxhao/bookshelf,joshturn/bookshelf,stonegithubs/bookshelf