[Docs] add version number to `nvm —help` output
[Docs] add version number to `nvm —help` output
ljharb/nvm,evocateur/nvm,PeterDaveHello/nvm,PeterDaveHelloKitchen/nvm,ljharb/nvm,creationix/nvm,PeterDaveHelloKitchen/nvm,PeterDaveHello/nvm,creationix/nvm,evocateur/nvm