doc: clarify token helper intro (#9058)
doc: clarify token helper intro (#9058)


rnaveiras/vault,hashicorp/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,hashicorp/vault,hartsock/vault,hartsock/vault,hartsock/vault,rnaveiras/vault,hartsock/vault,hashicorp/vault,hashicorp/vault,hashicorp/vault,rnaveiras/vault,rnaveiras/vault