make the example for bin links non-destructive
make the example for bin links non-destructive

When I first tried to install my app into the global bin folder, I used
the code sample provided:

    { "bin" : { "npm" : "./cli.js" } }

Unfortunately, I forgot to replace npm with myapp. This replaced my
installation of npm with myapp and I had to reinstall nodejs again
scratch.

chadnickbok/npm,chadnickbok/npm,segrey/npm,kemitchell/npm,lxe/npm,yibn2008/npm,cchamberlain/npm-msys2,evocateur/npm,thomblake/npm,evocateur/npm,rsp/npm,xalopp/npm,DaveEmmerson/npm,yodeyer/npm,evanlucas/npm,thomblake/npm,yodeyer/npm,segrey/npm,xalopp/npm,yibn2008/npm,princeofdarkness76/npm,kimshinelove/naver-npm,ekmartin/npm,TimeToogo/npm,haggholm/npm,evocateur/npm,cchamberlain/npm,misterbyrne/npm,midniteio/npm,misterbyrne/npm,chadnickbok/npm,lxe/npm,kemitchell/npm,xalopp/npm,ekmartin/npm,yibn2008/npm,lxe/npm,cchamberlain/npm,cchamberlain/npm,DIREKTSPEED-LTD/npm,Volune/npm,ekmartin/npm,rsp/npm,haggholm/npm,Volune/npm,haggholm/npm,segrey/npm,kemitchell/npm,evanlucas/npm,TimeToogo/npm,cchamberlain/npm-msys2,misterbyrne/npm,DIREKTSPEED-LTD/npm,midniteio/npm,cchamberlain/npm-msys2,kimshinelove/naver-npm,thomblake/npm,yodeyer/npm,DIREKTSPEED-LTD/npm,kimshinelove/naver-npm,princeofdarkness76/npm,TimeToogo/npm,princeofdarkness76/npm,DaveEmmerson/npm,rsp/npm,midniteio/npm,Volune/npm,evanlucas/npm,DaveEmmerson/npm