Update docs

spring-shell-docs/src/test/java/org/springframework/shell/docs/ButtonViewSnippets.java

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+/*
+ * Copyright 2023 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.shell.docs;
+
+import org.springframework.shell.component.view.control.ButtonView;
+
+class ButtonViewSnippets {
+
+	class Dump1 {
+
+		void dump1() {
+			// tag::sample[]
+			ButtonView view = new ButtonView();
+			view.setText("text");
+			view.setAction(() -> {
+				// do something when selected
+			});
+			// end::sample[]
+		}
+	}
+
+}