Update player keyboard shortcuts info

docs/manual/player/shortcuts.md

@@ -8,14 +8,13 @@ hide:
 The following keyboard shortcuts are available when the player element has input
 focus:
 
-* <kbd>space</kbd> - play / pause
+* <kbd>space</kbd> - pause / resume
 * <kbd>f</kbd> - toggle fullscreen mode
-* <kbd>←</kbd> / <kbd>→</kbd> - rewind by 5 seconds / fast-forward by 5 seconds
-* <kbd>Shift</kbd> + <kbd>←</kbd> / <kbd>Shift</kbd> + <kbd>→</kbd> - rewind by 10% / fast-forward by 10%
-* <kbd>[</kbd> (left square bracket) - rewind to the previous [marker](markers.md)
-* <kbd>]</kbd> (right square bracket) - fast-forward to the next marker
+* <kbd>←</kbd> / <kbd>→</kbd> - rewind / fast-forward by 5 seconds
+* <kbd>Shift</kbd> + <kbd>←</kbd> / <kbd>→</kbd> - rewind / fast-forward by 10%
+* <kbd>[</kbd> / <kbd>]</kbd> - jump to the previous / next [marker](markers.md)
 * <kbd>0</kbd>, <kbd>1</kbd>, <kbd>2</kbd> ... <kbd>9</kbd> - jump to 0%, 10%, 20% ... 90%
-* <kbd>.</kbd> - step through a recording a frame at a time (when paused)
+* <kbd>.</kbd> - step through a recording, one frame at a time (when paused)
 
 Go ahead and try them out in the player below: