integration-docs: Update Errbit for new doc format.

Part of #29592.

zerver/webhooks/errbit/doc.md

@@ -1,17 +1,28 @@
+# Zulip Errbit integration
+
 Get Zulip notifications for the Errbit error tracker!
 
+{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 on the Errbit site. Click on the
    **Edit** button for your Errbit app, and select **Webhook**.
 
-1. Enter the URL constructed above, and check **Enabled**.
-   Click **Save**.
+1. Enter the URL generated above, and toggle **Enabled**.
+
+1. Select **Save**.
+
+{end_tabs}
 
 {!congrats.md!}
 
 ![](/static/images/integrations/errbit/001.png)
+
+### Related documentation
+
+{!webhooks-url-specification.md!}