Update documentation for Cinny and Hydrogen

Add "DNS", "Adjusting the playbook configuration", and "Installing" sections

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

docs/configuring-playbook-client-cinny.md

@@ -4,18 +4,26 @@ This playbook can install the [cinny](https://github.com/ajbura/cinny) Matrix we
 Cinny is a web client focusing primarily on simple, elegant and secure interface.
 Cinny can be installed alongside or instead of Element.
 
-If you'd like Cinny to be installed, add the following to your configuration file (`inventory/host_vars/matrix.<your-domain>/vars.yml`):
+## DNS
 
-```yaml
-matrix_client_cinny_enabled: true
-```
-
-You will also need to add a DNS record so that Cinny can be accessed.
+You need to add a `cinny.DOMAIN` DNS record so that Cinny can be accessed.
 By default Cinny will use https://cinny.DOMAIN so you will need to create an CNAME record
 for `cinny`. See [Configuring DNS](configuring-dns.md).
 
-If you would like to use a different domain, add the following to your configuration file (changing it to use your preferred domain):
+If you would like to use a different domain, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file (changing it to use your preferred domain):
 
 ```yaml
  matrix_server_fqn_cinny: "app.{{ matrix_domain }}"
 ```
+
+## Adjusting the playbook configuration
+
+To enable Cinny, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
+
+```yaml
+matrix_client_cinny_enabled: true
+```
+
+## Installing
+
+After configuring the playbook, run the [installation](installing.md) command: `just install-all` or `just setup-all`

docs/configuring-playbook-client-hydrogen.md

@@ -4,18 +4,26 @@ This playbook can install the [Hydrogen](https://github.com/element-hq/hydrogen-
 Hydrogen is a lightweight web client that supports mobile and legacy web browsers.
 Hydrogen can be installed alongside or instead of Element.
 
-If you'd like Hydrogen to be installed, add the following to your configuration file (`inventory/host_vars/matrix.<your-domain>/vars.yml`):
+## DNS
 
-```yaml
-matrix_client_hydrogen_enabled: true
-```
-
-You will also need to add a DNS record so that Hydrogen can be accessed. 
+You need to add a `hydrogen.DOMAIN` DNS record so that Hydrogen can be accessed.
 By default Hydrogen will use https://hydrogen.DOMAIN so you will need to create an CNAME record
 for `hydrogen`. See [Configuring DNS](configuring-dns.md).
 
-If you would like to use a different domain, add the following to your configuration file (changing it to use your preferred domain):
+If you would like to use a different domain, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file (changing it to use your preferred domain):
 
 ```yaml
  matrix_server_fqn_hydrogen: "helium.{{ matrix_domain }}"
 ```
+
+## Adjusting the playbook configuration
+
+To enable Hydrogen, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
+
+```yaml
+matrix_client_hydrogen_enabled: true
+```
+
+## Installing
+
+After configuring the playbook, run the [installation](installing.md) command: `just install-all` or `just setup-all`