Improve documentation

[marceloalmeida]

Can you please improve the documentation of this plugin, like how to configure (config path) it or how to use it.

[catsby]

Hello -

This plugin comes "built-in" with Vault, and you can find usage and API documentation on Vault's website:

• Documentation: https://www.vaultproject.io/docs/secrets/kv/kv-v2
• API docs: https://www.vaultproject.io/api/secret/kv/kv-v2

Please consult the README for any other documentation for using this plugin directly for any kind of development:

• https://github.com/hashicorp/vault-plugin-secrets-kv#vault-plugin-key-value-secrets-backend-

I'm going to close this issue for now, thanks!