Edit user identifier example: example.com → {{ matrix_domain }}

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

docs/configuring-playbook-bot-baibot.md

@@ -93,7 +93,7 @@ If `matrix_admin` is already configured in your `vars.yml` configuration, you ca
 #
 # .. unless you've made yourself an admin of all bots/bridges like this:
 #
-# matrix_admin: '@yourAdminAccount:example.com'
+# matrix_admin: '@yourAdminAccount:{{ matrix_domain }}'
 ```
 
 ### 👥 Initial users configuration

docs/configuring-playbook-bot-postmoogle.md

@@ -39,11 +39,11 @@ matrix_bot_postmoogle_password: PASSWORD_FOR_THE_BOT
 # Uncomment to add one or more admins to this bridge:
 #
 # matrix_bot_postmoogle_admins:
-#  - '@yourAdminAccount:example.com'
+#  - '@yourAdminAccount:{{ matrix_domain }}'
 #
 # .. unless you've made yourself an admin of all bots/bridges like this:
 #
-# matrix_admin: '@yourAdminAccount:example.com'
+# matrix_admin: '@yourAdminAccount:{{ matrix_domain }}'
 ```
 
 ### DNS