add YAML to userguide
diff --git a/site/src/site/sitemap-user.groovy b/site/src/site/sitemap-user.groovy
index ea1185b..ae23e35 100644
--- a/site/src/site/sitemap-user.groovy
+++ b/site/src/site/sitemap-user.groovy
@@ -129,6 +129,7 @@
item 'Parsing and producing JSON', 'json', 'json-userguide'
item 'Working with a relational database', 'databases', 'sql-userguide'
item 'Processing XML', 'processing-xml', 'xml-userguide'
+ item 'Processing YAML', 'processing-yaml', 'yaml-userguide'
item 'Scripting Ant tasks', 'scripting-ant', 'ant-builder'
item 'Template engines', 'templating', 'template-engines'
item 'Creating Swing UIs', 'swing', 'swing-builder'
