Record main reading-hours settings release

docs/reading-limiter.md

@@ -7,7 +7,9 @@ available. A reader tab already open when a window ends checks access every 15
 seconds and returns to the gate. Chapter images use `Cache-Control: no-store` when
 the limiter is configured. Already downloaded images in a browser or files available
 directly on disk cannot be recalled; this is a self-imposed server access rule, not
-DRM. There is no schedule-changing API or UI.
+DRM. There is no schedule-changing API or UI. Signed-in readers and admins can
+view the effective weekly schedule and timezone under **Settings → Reading
+hours**; that page is read-only.
 
 ## Docker configuration