[Docs] Update README.md for Alpine linux reference
[Docs] Update README.md for Alpine linux reference

Add 4 packages as Alpine Linux wiki suggested:
(grep util-linux binutils findutils)

https://wiki.alpinelinux.org/wiki/How_to_get_regular_stuff_working

PeterDaveHello/nvm,ljharb/nvm,edwmurph/nvm,ljharb/nvm,edwmurph/nvm,PeterDaveHelloKitchen/nvm,PeterDaveHello/nvm,creationix/nvm,evocateur/nvm,PeterDaveHelloKitchen/nvm,creationix/nvm,evocateur/nvm