Update Timing.rst

Timing.rst

@@ -72,14 +72,14 @@ externally, they should at least be stable across different visual stimulus
 presentations and should hence not introduce any differences between
 experimental conditions.*
 
-*When using display scaling (for HiDPI/retina monitors for instance) Expyriment
-will attempt to return an unscaled screen. In fullscreen mode this means the native
-pixel resulution of the actual monitor (if the native resolution is not guessed
-correctly, it can be manually overwritten by setting 
-``control.defaults.display_resolution``. In some cases, however, Expyriment might
-return a screen which is scaled according to the operating system's scaling settings.
-To get a non-scaled screen in these cases, scaling has to be deactivated on the operating system
-level.*
+*When using display scaling on the operating system level (for HiDPI/retina
+monitors for instance) Expyriment will attempt to return an unscaled screen.
+In fullscreen mode this means the native pixel resulution of the actual monitor
+(if the native resolution is not guessed correctly, it can be manually overwritten
+by setting  ``control.defaults.display_resolution``. In some cases, however,
+Expyriment might return a screen which is scaled according to the operating
+system's scaling settings. To get a non-scaled screen in these cases, scaling has
+to be deactivated on the operating system level.*
 
 
 **Test results**