Add draft on exposing devices to Assist (#27185)

- screenshots show how this looks when there is no Cloud available
- Exposing HA or any other Cloud not included yet
-

source/_includes/asides/docs_navigation.html

@@ -46,6 +46,7 @@
           <li>{% active_link /docs/assist/apple/ Assist for Apple devices %}</li>
           <li>{% active_link /docs/assist/builtin_sentences/ Built-in sentences %}</li>
           <li>{% active_link /docs/assist/custom_sentences/ Custom sentences %}</li>
+          <li>{% active_link /docs/assist/voice_remote_expose_devices/ Exposing devices to your voice assistant %}</li>
           <li>{% active_link /docs/assist/troubleshooting/ Troubleshooting Assist %}</li>
           <li>{% active_link /docs/assist/voice_remote_local_assistant/ Configuring a local assistant %}</li>
           <li>{% active_link /projects/worlds-most-private-voice-assistant/ Tutorial: World's most private voice assistant %}</li>

source/docs/assist/voice_remote_expose_devices.markdown

@@ -0,0 +1,15 @@
+---
+title: "Exposing devices"
+---
+
+To be able to control your devices over a voice command, you must expose your entities to Assist.
+This is to avoid that sensitive devices, such as locks and garage doors, can inadvertently be controlled by voice commands.
+
+## Exposing your devices to Assist
+
+1. Go to **Settings** > **Voice assistants**.
+1. Open the **Expose** tab.
+   ![Expose entities tab](/images/assist/assistant-expose-01.png) 
+1. Select **Expose entities**.
+   1. Select all entities you want to be able to control by voice.
+   ![Expose entities tab](/images/assist/assistant-expose-02.png)