Add context and link to Argo overview (#18429)

Author: abstergail

src/content/docs/argo-smart-routing/index.mdx

@@ -18,7 +18,9 @@ Speed up your global traffic with a single click
 
 <Plan id="traffic.argo.properties.availability.summary" />
 
-Argo Smart Routing detects real-time network issues and routes traffic across the most efficient network path. These benefits are most apparent for users farthest from your origin server.
+Argo Smart Routing detects real-time network issues and routes your web traffic across the most efficient network path, avoiding congestion. This results in faster loading times, increased reliability, and reduced costs. These benefits are most apparent for users farthest from your origin server.
+
+Learn more about the [benefits of Argo Smart Routing](https://www.cloudflare.com/application-services/products/argo-smart-routing/).
 
 <Render file="non-contract-enablement" product="fundamentals" />