add dynamic content info to content endpoint

Author: simonabadoiu

src/content/docs/browser-rendering/rest-api/content-endpoint.mdx

@@ -63,3 +63,8 @@ Many more options exist, like setting HTTP headers using `setExtraHTTPHeaders`,
   file="setting-custom-user-agent"
   product="browser-rendering"
 />
+
+<Render
+  file="single-page-application"
+  product="browser-rendering"
+/>