clarify aws role tag doc (#4797)
clarify aws role tag doc (#4797)


joelthompson/vault,rnaveiras/vault,joelthompson/vault,hashicorp/vault,hartsock/vault,joelthompson/vault,hashicorp/vault,kingland/vault,kingland/vault,quixoten/vault,kingland/vault,kingland/vault,hashicorp/vault,rnaveiras/vault,rnaveiras/vault,hartsock/vault,kingland/vault,hashicorp/vault,hartsock/vault,rnaveiras/vault,hartsock/vault,quixoten/vault,hashicorp/vault,quixoten/vault,hashicorp/vault,joelthompson/vault,quixoten/vault,hartsock/vault,rnaveiras/vault