HomeAssistant: Convert image instructions to code blocks.

Renamed the example screenshot to default image name as well.

zerver/lib/integrations.py

@@ -737,7 +737,7 @@ DOC_SCREENSHOT_CONFIG: dict[str, list[BaseScreenshotConfig]] = {
     ],
     "helloworld": [ScreenshotConfig("hello.json")],
     "heroku": [ScreenshotConfig("deploy.txt")],
-    "homeassistant": [ScreenshotConfig("reqwithtitle.json", image_name="003.png")],
+    "homeassistant": [ScreenshotConfig("reqwithtitle.json")],
     "insping": [ScreenshotConfig("website_state_available.json")],
     "intercom": [ScreenshotConfig("conversation_admin_replied.json")],
     "jira": [ScreenshotConfig("created_v1.json")],

zerver/webhooks/homeassistant/doc.md

@@ -5,7 +5,13 @@
 1. In Home Assistant, you need to add the `notify` service to your
     `configuration.yaml` file.  This should look something like this:
 
-    ![](/static/images/integrations/homeassistant/001.png)
+    ```
+    notify:
+      - platform: rest
+        resource: http: {{ external_api_uri }}v1/external/homeassistant?api_key=<API key>
+        method: POST_JSON
+        title_param_name: topic
+    ```
 
 1. The `api_key` parameter should correspond to your bot's key. The `stream`
     parameter is not necessarily required; if not given, it will default to
@@ -18,7 +24,17 @@
 1. Finally, you need to configure a trigger for the service by adding
     an automation entry in the HomeAssistant `configuration.yaml` file.
 
-    ![](/static/images/integrations/homeassistant/002.png)
+    ```
+    automation:
+      trigger:
+        platform: sun
+        event: sunrise
+      action:
+        - service: notify.notify
+          data:
+            message: "It will be 30 degrees Celsius out there today!"
+            title: "Weather forecast"
+    ```
 
     The `data` object takes at least a `message` property and an optional
     `title` parameter which will be the conversation topic and which defaults
@@ -26,4 +42,4 @@
 
 {!congrats.md!}
 
-![](/static/images/integrations/homeassistant/003.png)
+![](/static/images/integrations/homeassistant/001.png)