Update sms.markdown

source/_integrations/sms.markdown

@@ -1,6 +1,49 @@
-# Local SMS notifications integration via GSM Modem
+---
-This integration allows to have a local execution SMS notification. This is ideal when the internet is offline or when the power goes out.
+title: "SMS"
+description: "SMS notification via GSM modem."
+ha_category:
+  - Notifications
+ha_release: 0.104.5
+---
 
+The `sms` integration allows to have a local execution SMS notification. This is ideal when the internet is offline or when the power goes out.
+
+To enable those notifications in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+sms:
+  device: /dev/ttyUSB2
+
+notify:
+  - platform: sms
+    name: sms_person1
+    phone_number: !secret notify_sms_person1
+  - platform: sms
+    name: sms_person2
+    phone_number: !secret notify_sms_person2
+```
+And the screts yaml:
+```
+sms_person1: "+1NNNNNNNNNN"
+sms_person2: "+1NNNNNNNNNN"
+```
+Replace the NNN for the actual phone numbers
+
+{% configuration %}
+device:
+  description: The gsm modem device.
+  required: true
+  type: string
+{% endconfiguration %}
+
+To use notifications, please see the [getting started with automation page](/getting-started/automation/).
+
+It requires hassos version [3.6](https://github.com/home-assistant/hassos/releases/tag/3.6) or higher.
+Check that the modem is recognized by running:
+```
+ls -l /dev/*USB*
+```
 # Required Hardware
 You will need a USB GSM stick modem.
 ## List of modems known to work:
@@ -8,32 +51,9 @@ You will need a USB GSM stick modem.
 Need to unlock it using [this guide](http://blog.asiantuntijakaveri.fi/2015/07/convert-huawei-e3372h-153-from.html))
 ## [List of modems that may work](https://www.asus.com/event/networks_3G4G_support/)
 
-# Configuration
-It requires hassos version [3.6](https://github.com/home-assistant/hassos/releases/tag/3.6) or higher.
-Check that the modem is recognized by running:
-```
-ls -l /dev/*USB*
-```
-
 ## Home Assistant config
-In home assistant you need to configure your yaml notification as:
-```
-notify:
-  - platform: command_line
-    name: sms_person1
-    command: !secret notify_sms_person1
-  - platform: command_line
-    name: sms_person2
-    command: !secret notify_sms_person2
-```
-And the screts yaml:
-```
-notify_sms_person1: "/config/custom_components/sms/send_sms.sh +1NNNNNNNNNN /dev/ttyUSB2"
-notify_sms_person2: "/config/custom_components/sms/send_sms.sh +1NNNNNNNNNN /dev/ttyUSB2"
-```
-Replace the NNN for the actual phone numbers
 
-## Note about Raspberry
+## Note about Raspberry PI 4
 On Raspberry PI 4, you need a udev rule in the config USB stick, for the [Huawei E3372-510 stick](https://www.amazon.com/gp/product/B01N6P3HI2/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1) for it to be recognized.
 This config is:
 ```
@@ -48,3 +68,5 @@ ACTION=="add" \
 
 ## More details:
 - [Original thread discussion](https://community.home-assistant.io/t/send-sms-with-usb-gsm-modem-when-alarm-triggered/28942/38)
+
+#