Hashicorp Vault key management plugin little docs improvement

Feature Request

I would really appreciate if you added a very trivial documentation bit, that costed me hours and hours of walls headbutting.

Use case:

• user is new to MariaDB (my own case)
• user wants to encrypt the database with the Hashicorp Vault key management plugin.

I installed MariaDB, but I did not find anywhere in the documentation that the Hashicorp Vault key management shared library / plugin has to be installed separately, from where and how to do it.

Basically, somewhere in the Hashicorp Vault key management plugin documentation, please add some text like:

The Hashicorp Vault key management plugin does not come installed by default".
You have to install it by issuing the following command:

apt install mariadb-plugin-hashicorp-key-management

(The above, of course, is for Ubuntu etc., add yum statements etc.)

Thank you. I really wish I knew this simple info before spending hours wondering why the server did not start and why the plugin was not present.