webhooks/librato: Rewrite docs to conform to style guide.

zerver/webhooks/librato/doc.md

@@ -1,49 +1,31 @@
-Get Zulip notifications for your Librato alerts or snapshots!
+Get Zulip notifications for your Librato/AppOptics alerts or snapshots!
 
-{!create-stream.md!}
+### Set up notifications for Alerts
 
-{!create-bot-construct-url.md!}
+1. {!create-stream.md!}
 
-The default stream name is **librato** and default topic name is
-**Alert alert_name**.
+1. {!create-bot-construct-url-indented.md!}
+   By default, the integration will use the name of the alert.
 
-### Alerts configuration
+1. Go to your AppOptics/Librato homepage, and click on **Settings**
+   on the left. Select **Notification Services**, and click on
+   **Webhooks**.
 
-Login into your Librato account and switch to the Integrations
-page:
-
-![](/static/images/integrations/librato/001.png)
-
-From there, select **Webhook** integration:
-
-![](/static/images/integrations/librato/002.png)
-
-Fill in the title and for the URL, fill in the URL we created
-above:
-
-![](/static/images/integrations/librato/003.png)
-
-Next, go to your Alerts page:
-
-![](/static/images/integrations/librato/004.png)
-
-Choose the alert conditions and enable the your new webhook
-under **Notification Services**:
-
-![](/static/images/integrations/librato/005.png)
+1. Set **Title** to a title of your choice, such as `Zulip`. Set **URL**
+   to the URL constructed above, and click **Add**. When you create a
+   new **Alert**, you can enable this webhook under the **Notification
+   Services** tab.
 
 {!congrats.md!}
 
-![](/static/images/integrations/librato/006.png)
+![](/static/images/integrations/librato/001.png)
 
-### Snapshot configuration
+### Set up notifications for Snapshots
 
 Because of limitations in Librato's API, you need to use the
-Slack integration to get Librato snapshots sent into Zulip.
+[Slack integration](./slack) to get Librato snapshots sent into Zulip.
 
-![](/static/images/integrations/librato/007.png)
-
-Default stream name is **librato** and default topic name is
+The default stream name is **librato** and default topic name is
 **snapshots**.
 
 To send a snapshot, just click on one of your charts, use