Adding insights into D1 Wrangler commands page.

Author: Oxyjun

src/content/docs/d1/wrangler-commands.mdx

@@ -14,4 +14,16 @@ D1 Wrangler commands use REST APIs to interact with the control plane. This page
 
 ## Global commands
 
-<Render file="wrangler-commands/global-flags" product="workers" />
+<Render file="wrangler-commands/global-flags" product="workers" />
+
+## Experimental commands
+
+### `insights`
+
+Returns statistics about your queries.
+
+```sh
+npx wrangler d1 insights <database_name> --<option>
+```
+
+For more information, see [Query `insights`](/d1/observability/metrics-analytics/#query-insights).