graphql-cli upgraded to 4.x.x and `graphql create` no longer works

`graphql-cli` has been upgraded from 3.x.x to 4.x.x and `create` command is replaced by `init` - [more](https://github.com/Urigo/graphql-cli/blob/master/docs/MIGRATION.md#create-is-no-longer-available-it-is-replaced-by-the-init-command).
