Fix API key path in documentation

Correct path is Extended > API Keys, not Expert > Advanced > Security

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

README.md

@@ -43,7 +43,7 @@ A Home Assistant custom integration that exposes Emby media server clients as me
 4. Enter your Emby server details:
    - **Host**: Your Emby server hostname or IP address
    - **Port**: Emby server port (default: 8096)
-   - **API Key**: Your Emby API key (found in Dashboard > Expert > Advanced > Security)
+   - **API Key**: Your Emby API key (found in Dashboard > Extended > API Keys)
    - **Use SSL**: Enable if your server uses HTTPS
 5. Select the Emby user account to use
 6. Click **Submit**
@@ -51,8 +51,8 @@ A Home Assistant custom integration that exposes Emby media server clients as me
 ### Getting an API Key
 
 1. Open your Emby Server Dashboard
-2. Navigate to **Expert** > **Advanced** > **Security**
-3. Click **Add** to create a new API key
+2. Navigate to **Extended** > **API Keys**
+3. Click **New API Key** (+ button)
 4. Give it a name (e.g., "Home Assistant")
 5. Copy the generated key