Update README.md
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@ -41,8 +41,6 @@ Here's the sample code with wizard and goblin. Let's start from the `Wizard` cla
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```java
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public class Wizard {
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private static final Logger LOGGER = LoggerFactory.getLogger(Wizard.class);
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private final Deque<Command> undoStack = new LinkedList<>();
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private final Deque<Command> redoStack = new LinkedList<>();
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