Doc fix, followerAnchor changed to targetAnchor (#112054)

diff --git a/packages/flutter/lib/src/widgets/basic.dart b/packages/flutter/lib/src/widgets/basic.dart
index 693af83..6fe55c0 100644
--- a/packages/flutter/lib/src/widgets/basic.dart
+++ b/packages/flutter/lib/src/widgets/basic.dart
@@ -1646,7 +1646,7 @@
   /// Defaults to [Alignment.topLeft].
   final Alignment targetAnchor;
 
-  /// The anchor point on this widget that will line up with [followerAnchor] on
+  /// The anchor point on this widget that will line up with [targetAnchor] on
   /// the linked [CompositedTransformTarget].
   ///
   /// {@macro flutter.widgets.CompositedTransformFollower.targetAnchor}