Update websockets.mdx

added note about session duration with EdgeStartTimestamp and EdgeEndTimestamp

Author: chris-martinelli

src/content/docs/network/websockets.mdx

@@ -71,3 +71,5 @@ When Cloudflare releases new code to its global network, we may restart servers,
 
 Investigating issues with Websocket can be facilitated with client tools like [wscat](https://github.com/websockets/wscat).
 Being able to reproduce an issue on a single URL with a minimalistic tool helps narrowing down the issue.
+
+When looking at [HTTP requests logs](/logs/reference/log-fields/zone/http_requests/) note that the EdgeStartTimestamp and EdgeStopTimestamp fields represent the duration of the websocket connection and is not just a representation of the initial HTTP connection.