Upgrade spring-doc-resources

Upgrade spring-doc-resources from version 0.2.0 to version 0.2.1
to get a bug fix (setting the display width for HTML output).

Author: Jay Bryant

build.gradle

@@ -39,7 +39,7 @@ ext {
 	linkScmUrl = 'https://github.com/spring-projects/spring-kafka'
 	linkScmConnection = 'https://github.com/spring-projects/spring-kafka.git'
 	linkScmDevConnection = '[email protected]:spring-projects/spring-kafka.git'
-	docResourcesVersion = '0.2.0.RELEASE'
+	docResourcesVersion = '0.2.1.RELEASE'
 
 
 	if (gitPresent) {