[needs tech review] - adding browser session time (#3760)

per [slack
thread](https://dbt-labs.slack.com/archives/C0159442M18/p1689060702243859?thread_ts=1689054992.750199&cid=C0159442M18),
adding a little section on browser time as this question has been asked
a few times in slack from revenue teammates/users.

this pr needs a technical review before it's merged, so please do not
merge it yet. editorial review is ok, so long as it's not merged.

1. [x ] Needs security/technical review (priority)
2. [ x] Needs docs review

website/docs/docs/cloud/about-cloud/browsers.md

@@ -22,3 +22,8 @@ You may still be able to access and use dbt Cloud even without using the latest
 To improve your experience using dbt Cloud, we suggest that you turn off ad blockers.
 :::
 
+### Browser sessions
+
+A session is a period of time during which you’re signed in to a dbt Cloud account from a browser. If you close your browser, it will end your session and log you out. You'll need to log in again the next time you try to access dbt Cloud. 
+
+If you've logged in using [SSO](/docs/cloud/manage-access/sso-overview) or [OAuth](/docs/cloud/git/connect-github#personally-authenticate-with-github), you can customize your maximum session duration, which might vary depending on your identity provider (IdP).