update doc HOWTO.md

HOWTO.md

@@ -91,10 +91,10 @@ Change monitors config.
     - **Name:** Monitors config
     - **Description:** Monitors config.
     - **Required:** true
-  - **Selector:** text
+    - **Selector:** object (yaml)
     - **Example:**
       ```yaml
-    monitors:
+      # Tip: You can use the command `gnome-monitor-config list` or `xrandr` to your monitors names and resolutions.
       HDMI-1:
         enabled: true
         primary: true
@@ -103,3 +103,11 @@ Change monitors config.
         transform: normal
         scale: 2
       ```
+  
+
+- `entity_id`
+    - **Name:** Entity ID
+    - **Description:** Entity ID of the device to change the monitors config.
+    - **Required:** true
+    - **Example:** "switch.my_computer"
+    - **Device Integration:** easy_computer_manage