Update shop tutorial

easy-rules-tutorials/pom.xml

@@ -219,6 +219,9 @@
                         <version>${maven-exec-plugin.version}</version>
                         <configuration>
                             <mainClass>org.jeasy.rules.tutorials.shop.Launcher</mainClass>
+                            <arguments>
+                                <argument>${project.basedir}/src/main/java/org/jeasy/rules/tutorials/shop/alcohol-rule.yml</argument>
+                            </arguments>
                         </configuration>
                     </plugin>
                 </plugins>

easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/shop/Launcher.java

@@ -45,12 +45,13 @@ public class Launcher {
         // create rules
         MVELRule ageRule = new MVELRule()
                 .name("age rule")
-                .description("Check if person's age is > 18 and marks the person as adult")
+                .description("Check if person's age is > 18 and mark the person as adult")
                 .priority(1)
                 .when("person.age > 18")
                 .then("person.setAdult(true);");
         MVELRuleFactory ruleFactory = new MVELRuleFactory(new YamlRuleDefinitionReader());
-        Rule alcoholRule = ruleFactory.createRule(new FileReader("src/main/java/org/jeasy/rules/tutorials/shop/alcohol-rule.yml"));
+        String fileName = args.length != 0 ? args[0] : "easy-rules-tutorials/src/main/java/org/jeasy/rules/tutorials/shop/alcohol-rule.yml";
+        Rule alcoholRule = ruleFactory.createRule(new FileReader(fileName));
 
         // create a rule set
         Rules rules = new Rules();