Fix name of Groovy Templates sample project

Author: wilkinsona

spring-boot-samples/pom.xml

@@ -44,7 +44,7 @@
 		<module>spring-boot-sample-tomcat-multi-connectors</module>
 		<module>spring-boot-sample-traditional</module>
 		<module>spring-boot-sample-web-freemarker</module>
-		<module>spring-boot-sample-web-groovy-template</module>
+		<module>spring-boot-sample-web-groovy-templates</module>
 		<module>spring-boot-sample-web-method-security</module>
 		<module>spring-boot-sample-web-secure</module>
 		<module>spring-boot-sample-web-static</module>