Update docs/configuring-playbook-ma1sd.md: move the instruction for additional features up

Move instructions for features which use the "matrix_ma1sd_configuration_extension_yaml" variable under "Additional features".

Also: adjust headers' level

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

docs/configuring-playbook-ma1sd.md

@@ -28,11 +28,22 @@ To enable matrix.org forwarding, add the following configuration to your `invent
 matrix_ma1sd_matrixorg_forwarding_enabled: true
 ```
 
-### Customizing email templates
+### Additional features
+
+What this playbook configures for your is some bare minimum Identity Server functionality, so that you won't need to rely on external 3rd party services.
+
+A few variables can be toggled in this playbook to alter the ma1sd configuration that gets generated.
+
+Still, ma1sd can do much more. You can refer to the [ma1sd website](https://github.com/ma1uta/ma1sd) for more details and configuration options.
+
+To use a more custom configuration, you can define a `matrix_ma1sd_configuration_extension_yaml` string variable and put your configuration in it. To learn more about how to do this, refer to the information about `matrix_ma1sd_configuration_extension_yaml` in the [default variables file](../roles/custom/matrix-ma1sd/defaults/main.yml) of the ma1sd component.
+
+
+#### Customizing email templates
 
 If you'd like to change the default email templates used by ma1sd, take a look at the `matrix_ma1sd_threepid_medium_email_custom_` variables (in the `roles/custom/matrix-ma1sd/defaults/main.yml` file.
 
-## ma1sd-controlled Registration
+#### ma1sd-controlled Registration
 
 To use the [Registration](https://github.com/ma1uta/ma1sd/blob/master/docs/features/registration.md) feature of ma1sd, you can make use of the following variables:
 
@@ -49,7 +60,7 @@ To use the [Registration](https://github.com/ma1uta/ma1sd/blob/master/docs/featu
 **Note**: For this to work, either the homeserver needs to [federate](configuring-playbook-federation.md) or the `openid` APIs need to exposed on the federation port. When federation is disabled and ma1sd is enabled, we automatically expose the `openid` APIs (only!) on the federation port. Make sure the federation port (usually `https://matrix.example.com:8448`) is whitelisted in your firewall (even if you don't actually use/need federation).
 
 
-## Authentication
+#### Authentication
 
 [Authentication](https://github.com/ma1uta/ma1sd/blob/master/docs/features/authentication.md) provides the possibility to use your own [Identity Stores](https://github.com/ma1uta/ma1sd/blob/master/docs/stores/README.md) (for example LDAP) to authenticate users on your Homeserver.
 
@@ -73,17 +84,7 @@ matrix_ma1sd_configuration_extension_yaml: |
       bindPassword: TheUserPassword
 ```
 
-## Additional features
-
-What this playbook configures for your is some bare minimum Identity Server functionality, so that you won't need to rely on external 3rd party services.
-
-A few variables can be toggled in this playbook to alter the ma1sd configuration that gets generated.
-
-Still, ma1sd can do much more. You can refer to the [ma1sd website](https://github.com/ma1uta/ma1sd) for more details and configuration options.
-
-To use a more custom configuration, you can define a `matrix_ma1sd_configuration_extension_yaml` string variable and put your configuration in it. To learn more about how to do this, refer to the information about `matrix_ma1sd_configuration_extension_yaml` in the [default variables file](../roles/custom/matrix-ma1sd/defaults/main.yml) of the ma1sd component.
-
-## Example: SMS verification
+#### Example: SMS verification
 
 If your use case requires mobile verification, it is quite simple to integrate ma1sd with [Twilio](https://www.twilio.com/), an online telephony services gateway. Their prices are reasonable for low-volume projects and integration can be done with the following configuration:
 
@@ -99,7 +100,7 @@ matrix_ma1sd_configuration_extension_yaml: |
             number: '+<msisdn-number>'
 ```
 
-## Example: Open Registration for every Domain
+#### Example: Open Registration for every Domain
 
 If you want to open registration for any domain, you have to setup the allowed domains with ma1sd's `blacklist` and `whitelist`. The default behavior when neither the `blacklist`, nor the `whitelist` match, is to allow registration. Beware: you can't block toplevel domains (aka `.xy`) because the internal architecture of ma1sd doesn't allow that.