Docs: update formatting / heading (#4175)
Docs: update formatting / heading (#4175)

- Correct Generate Disaster Recovery Operation Token heading level
- Tighten up formatting/trailing spaces
Aloomaio/vault,rnaveiras/vault,kingland/vault,mgk/vault,hashicorp/vault,hartsock/vault,Aloomaio/vault,joelthompson/vault,rnaveiras/vault,rnaveiras/vault,kingland/vault,rnaveiras/vault,kingland/vault,hashicorp/vault,hartsock/vault,rnaveiras/vault,mgk/vault,joelthompson/vault,Aloomaio/vault,hashicorp/vault,kingland/vault,hashicorp/vault,joelthompson/vault,mgk/vault,Aloomaio/vault,hashicorp/vault,hartsock/vault,quixoten/vault,quixoten/vault,kingland/vault,hashicorp/vault,hartsock/vault,mgk/vault,hartsock/vault,joelthompson/vault,quixoten/vault,quixoten/vault