Updates to docs

spring-statemachine-samples/src/main/resources/META-INF/spring/spring-shell-plugin.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
+	<context:component-scan base-package="demo" />
+</beans>

spring-statemachine-samples/src/main/resources/logback.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+
+    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>%m%n</pattern>
+			<charset>utf8</charset>
+		</encoder>
+	</appender>
+
+    <root level="WARN">
+		<appender-ref ref="CONSOLE" />
+	</root>
+
+    <logger name="demo" level="INFO"/>
+
+</configuration>