correct the frame rate

Author: rgarcia

observability/live-view.mdx

@@ -35,11 +35,9 @@ The `browser_live_view_url` supports additional query parameters to customize th
 
 - `w` / `width` (num): sets the width of the VM's screen in pixels.
 - `h` / `height` (num): sets the height of the VM's screen in pixels.
-- `fr` (num): sets the live view frame rate. The default frame rate is 30 FPS.
+- `r` / `rate` (num): sets the live view frame rate in frames per second. The default is 30.
 - `readOnly` (bool): when set to `true`, the view will be non-interactive.
 
- Example `https://api.onkernel.com/browser/live?w=1024&h=768&fr=60readOnly=false&jwt=` 
-
 ## Browser persistence
 
 If you [marked](/launch/browser-persistence) a browser for persistence, `browser_live_view_url` remains active after the invocation ends. It remains active until you [terminate the browser](/launch/browser-termination).