From 87ab8b15b1fd7c9e82e01e73d91ce1542c2e9870 Mon Sep 17 00:00:00 2001
From: Konstantin Goldman <konstantin.goldman@gmail.com>
Date: Mon, 29 May 2023 13:31:54 -0700
Subject: [PATCH] Fix Command pattern README to match implementation

---
 command/README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/command/README.md b/command/README.md
index 476edc47af39..a3b863b78cbe 100644
--- a/command/README.md
+++ b/command/README.md
@@ -40,8 +40,8 @@ Here's the sample code with wizard and goblin. Let's start from the `Wizard` cla
 @Slf4j
 public class Wizard {
 
-  private final Deque<Command> undoStack = new LinkedList<>();
-  private final Deque<Command> redoStack = new LinkedList<>();
+  private final Deque<Runnable> undoStack = new LinkedList<>();
+  private final Deque<Runnable> redoStack = new LinkedList<>();
 
   public Wizard() {}