Mnesia authentication docs mentions non-existend api endpoint

[alexsuppanz]

Hi,

since emqx_auth_clientid and emqx_auth_username are merged to emqx_auth_mnesia starting with 4.3.0 we followed the Mnesia Authentication docs to create users by using the api, which is the more secure way instead of creating them via emqx_auth_mnesia.conf file.

Unfortunately, the docs mention to use the api/v4/auth_user endpoint, which returns 404 Not Found. We checked the source of the plugin and identified a different path /auth_username is used by this plugin (see original source -> LINK )

In https://github.com/emqx/emqx-docs/issues/795 someone already mentioned that the endpoint from docs does not exist. Commit 39feb21d4dfb8b6ff86bd78b02539e03ade142fc already fixed the documentation, but it is not yet published on docs.emqx.io.

File: /en_US/advanced/auth-mnesia.md

Regards, Alex