Reverted wrong change.

Author: Mambouna

doc/builtins.rst

@@ -61,8 +61,8 @@ draw images to the screen ("blit" them).
 
         Returns the path of the file that was written, as a string.
 
-        The default keybinding to take screenshots is F12 and doesn't
-        require the user to manually use this function in their code.
+        You can press F12 to take a screenshot at any time, without
+        needing to call this function.
 
     .. method:: draw.line(start, end, (r, g, b), width=1)