Update spring-doc-resources version

* Update spring-doc-resources version

Update the version of spring-doc-resources to get the latest look and feel.

Author: Jay Bryant

pom.xml

@@ -123,7 +123,7 @@
 		<xmlunit.version>2.7.0</xmlunit.version>
 		<xws-security.version>3.0</xws-security.version>
 		<xom.version>1.2.5</xom.version>
-		<docs.resources.version>0.1.3.RELEASE</docs.resources.version>
+		<docs.resources.version>0.2.1.RELEASE</docs.resources.version>
 	</properties>
 
 	<dependencyManagement>