Update docs/configuring-playbook-jitsi.md: create a section for instruction to enable authentication

Partially based on 699b458733

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/configuring-playbook-jitsi.md

@@ -60,7 +60,15 @@ As the most of the necessary settings for the role have been taken care of by th
 
 However, **since Jitsi's performance heavily depends on server resource (bandwidth, RAM, and CPU), it is recommended to review settings and optimize them as necessary before deployment.** You can check [here](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#example-configurations) for an example set of configurations to set up a Jitsi instance, focusing on performance. If you will host a large conference, you probably might also want to consider to provision additional JVBs ([Jitsi VideoBridge](https://github.com/jitsi/jitsi-videobridge)). See [here](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#set-up-additional-jvbs-for-more-video-conferences-optional) for details about setting them up with the playbook.
 
-See the role's document for details about configuring Jitsi per your preference (such as setting [a custom hostname](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#set-the-hostname), [authentication and guests mode](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#configure-jitsi-authentication-and-guests-mode-optional), and [the environment variable for running Jitsi in a LAN](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#configure-jvb_advertise_ips-for-running-behind-nat-or-on-a-lan-environment-optional)).
+See the role's document for details about configuring Jitsi per your preference (such as setting [a custom hostname](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#set-the-hostname) and [the environment variable for running Jitsi in a LAN](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#configure-jvb_advertise_ips-for-running-behind-nat-or-on-a-lan-environment-optional)).
+
+### Enable authentication and guests mode (optional)
+
+By default the Jitsi Meet instance **does not require for anyone to log in, and is open to use without an account**.
+
+If you would like to control who is allowed to start meetings on your instance, you'd need to enable Jitsi's authentication and optionally guests mode.
+
+See [this section](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#configure-jitsi-authentication-and-guests-mode-optional) on the role's document for details about how to configure the authentication and guests mode. If you want to enable authentication with Matrix OpenID making use of [Matrix User Verification Service (UVS)](https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/configuring-playbook-user-verification-service.md), see [here](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/docs/configuring-jitsi.md#authenticate-using-matrix-openid-auth-type-matrix) for details about how to set it up.
 
 ### Configure Jitsi authentication and guests mode (optional)