Update Slider docs to match comment to table (#4301)

Author: snowystinger

packages/@react-aria/slider/docs/useSlider.mdx

@@ -75,7 +75,7 @@ The thumbs can be dragged to allow a user to change their value. In addition, th
 track can be clicked to move the nearest thumb to that position.
 
 ### useSlider hook
-`useSlider` returns three sets of props that you should spread onto the appropriate element:
+`useSlider` returns several sets of props and you should spread each one onto the appropriate element:
 
 <TypeContext.Provider value={docs.links}>
   <InterfaceType properties={docs.links[docs.exports.useSlider.return.id].properties} />