Update docs/configuring-playbook-jitsi.md: switch the order of instructions about adjusting DNS records and adjusting the URL

Since adjusting DNS records does not belong to adjusting the playbook configuration, the section was moved out of it.

This is a first trial of placing the instruction about adjusting DNS records above the section for adjusting the URL. Once it is confirmed that this change makes sense, the other instances will be addressed with another commit.

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

docs/configuring-playbook-jitsi.md

@@ -13,6 +13,10 @@ You may need to open the following ports to your server:
 - `4443/tcp` - RTP media fallback over TCP
 - `10000/udp` - RTP media over UDP. Depending on your firewall/NAT setup, incoming RTP packets on port `10000` may have the external IP of your firewall as destination address, due to the usage of STUN in JVB (see [`jitsi_jvb_stun_servers`](https://github.com/mother-of-all-self-hosting/ansible-role-jitsi/blob/main/defaults/main.yml)).
 
+## Adjusting DNS records
+
+By default, this playbook installs Jitsi on the `jitsi.` subdomain (`jitsi.example.com`) and requires you to create a CNAME record for `jitsi`. See [Configuring DNS](configuring-dns.md) for details about DNS changes.
+
 ## Adjusting the playbook configuration
 
 To enable Jitsi, add the following configuration to your `inventory/host_vars/matrix.example.com/vars.yml` file:
@@ -23,8 +27,6 @@ jitsi_enabled: true
 
 ### Adjusting the Jitsi URL
 
-By default, this playbook installs Jitsi on the `jitsi.` subdomain (`jitsi.example.com`) and requires you to [adjust your DNS records](#adjusting-dns-records).
-
 By tweaking the `jitsi_hostname` variable, you can easily make the service available at a **different hostname** than the default one.
 
 Example additional configuration for your `vars.yml` file:
@@ -34,11 +36,7 @@ Example additional configuration for your `vars.yml` file:
 jitsi_hostname: call.example.com
 ```
 
-#### Adjusting DNS records
-
-Once you've decided on the domain and path, **you may need to adjust your DNS** records to point the Jitsi domain to the Matrix server.
-
-By default, you will need to create a CNAME record for `jitsi`. See [Configuring DNS](configuring-dns.md) for details about DNS changes.
+After changing the domain, **you may need to adjust your DNS** records to point the Jitsi domain to the Matrix server.
 
 ### Configure Jitsi authentication and guests mode (optional)