Grammatical fix: "places" to "placed" (#26482)

packages/flutter/lib/src/rendering/wrap.dart

@@ -150,7 +150,7 @@ class RenderWrap extends RenderBox with ContainerRenderObjectMixin<RenderBox, Wr
     markNeedsLayout();
   }
 
-  /// How the children within a run should be places in the main axis.
+  /// How the children within a run should be placed in the main axis.
   ///
   /// For example, if [alignment] is [WrapAlignment.center], the children in
   /// each run are grouped together in the center of their run in the main axis.