[css-scroll-snap] Consistent spelling of naïve

Author: ChumpChief

css-scroll-snap/Overview.bs

@@ -778,7 +778,7 @@ Choosing Snap Positions {#choosing}
 
     A <a>scroll container</a> can have many <a>snap areas</a>
     scattered throughout its <a>scrollable overflow region</a>.
-    A naive algorithm for selecting a <a>snap position</a>
+    A naïve algorithm for selecting a <a>snap position</a>
     can produce behavior that is unintuitive for users,
     so care is required when designing a selection algorithm.
     Here are a few pointers that can aid in the selection process: