docs array -> slice

Co-authored-by: est31 <[email protected]>

Author: lcnr

library/core/src/slice/mod.rs

@@ -1034,7 +1034,7 @@ impl<T> [T] {
     ///
     /// This is the const generic equivalent of [`windows`].
     ///
-    /// If `N` is greater than the size of the array, it will return no windows.
+    /// If `N` is greater than the size of the slice, it will return no windows.
     ///
     /// # Panics
     ///