integration-docs: Update Gosquared for new doc format.

Part of #29592.

zerver/webhooks/gosquared/doc.md

@@ -1,23 +1,37 @@
+# Zulip GoSquared integration
+
 Receive GoSquared notifications in Zulip!
 
+{start_tabs}
+
 1. {!create-channel.md!}
 
 1. {!create-an-incoming-webhook.md!}
 
-1. {!generate-integration-url.md!}
+1. {!generate-webhook-url-basic.md!}
 
-1. Go to your project's **Settings** and click on **Services**.
+1. Go to your project's **Settings**, and click on **Services**.
    Scroll down and next to **Webhook**, click on **Connect**. Click
-   on **Add new**.
+   **Add new**.
 
-1. Set **Webhook URL** to the URL constructed above. Set **Name** to
-   a name of your choice, such as `Zulip`. Click on **Save Integration**.
+1. Set **Webhook URL** to the URL generated above. Set **Name** to a
+   name of your choice, such as `Zulip`. Click **Save Integration**.
 
-1. In your project's **Settings**, click on **Notifications**. Click on
-   **Add new notification**. Under **Trigger**, you may configure when
-   notifications are triggered. Under **Delivery**, check the **Webhook**
-   checkbox, and click **Add**.
+1. In your project's **Settings**, click on **Notifications**. Click
+   **Add new notification**.
+
+1. Under **Trigger**, you can configure when notifications are
+   triggered. Under **Delivery**, toggle the **Webhook** checkbox,
+   and click **Add**.
+
+{end_tabs}
 
 {!congrats.md!}
 
 ![](/static/images/integrations/gosquared/000.png)
+
+{!event-filtering-additional-feature.md!}
+
+### Related documentation
+
+{!webhooks-url-specification.md!}