Improve Usage section of Jitsi docs page

docs/configuring-playbook-jitsi.md

@@ -101,9 +101,15 @@ Run this command for each user you would like to create, replacing `<USERNAME>`
 
 ## Usage
 
-You can use the self-hosted Jitsi server through Riot, through an Integration Manager like [Dimension](docs/configuring-playbook-dimension.md) or directly at `https://jitsi.DOMAIN`.
+You can use the self-hosted Jitsi server in multiple ways:
 
-To use it via riot-web (the one configured by the playbook at `https://riot.DOMAIN`), just start a voice or a video call in a room containing more than 2 members and that would create a Jitsi widget which utilizes your self-hosted Jitsi server.
+- **by adding a widget to a room via riot-web** (the one configured by the playbook at `https://riot.DOMAIN`). Just start a voice or a video call in a room containing more than 2 members and that would create a Jitsi widget which utilizes your self-hosted Jitsi server.
+
+- **by adding a widget to a room via the Dimension Integration Manager**. You'll have to point the widget to your own Jitsi server manually. See our [Dimension](./configuring-playbook-dimension.md) documentation page for more details. Naturally, Dimension would need to be installed first (the playbook doesn't install it by default).
+
+- **directly (without any Matrix integration)**. Just go to `https://jitsi.DOMAIN`
+
+**Note**: Riot apps on mobile devices currently [don't support joining meetings on a self-hosted Jitsi server](https://github.com/vector-im/riot-web/blob/601816862f7d84ac47547891bd53effa73d32957/docs/jitsi.md#mobile-app-support).
 
 
 ## Troubleshooting