Fix misleading Agent Auth Overview doc page (#6443)
Fix misleading Agent Auth Overview doc page (#6443)

* Fix misleading Agent Auth Overview doc page

The example configuration in the Vault Agent Overview page is using wrong syntax
The configuration block is `cache` but doc is referencing it as `caching`

* Update website/source/docs/agent/index.html.md

Co-Authored-By: danlsgiga <9a54f5da3d616c8f889380a3634b9211c49242de@gmail.com>

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