[mediaqueries-5] Fix typos

See #5433

mediaqueries-5/Overview.bs

@@ -2772,13 +2772,13 @@ Detecting Forced Colors Mode: the 'forced-colors' feature</h3>
 	</div>
 
 	<div class=example>
-		The reduced palette enforeced by [=forced colors mode=]
+		The reduced palette enforced by [=forced colors mode=]
 		can call for some visual simplification of the page.
 		''@media (forced-colors) or (prefers-contrast) { … }''
 		can thus be a useful query to conditionally apply styles that reduce visual clutter,
 		catching all users of forced colors and all users with contrast preferences.
 		''@media (prefers-contrast) { … }'' would leave how forced-colors users
-		with a color scheme that is neither particularly hight nor low contrast.
+		with a color scheme that is neither particularly hight nor low contrast,
 		while ''@media (forced-colors) { … }'' would instead leave out users with contrast preferences
 		that do not come from usage of [=forced colors mode=].
 	</div>