--- /dev/null
+<html>
+<head>
+<title>Enhanced category features</title>
+</head>
+<body>
+<h1>Enhanced category features</h1>
+
+{@link org.apache.lucene.facet.index.params.FacetIndexingParams FacetIndexingParams}
+used by
+{@link org.apache.lucene.facet.enhancements.EnhancementsDocumentBuilder EnhancementsDocumentBuilder}
+for adding
+{@link org.apache.lucene.facet.enhancements.CategoryEnhancement CategoryEnhancement}'s
+to the indexing parameters, and accessing them during indexing and search.
+
+</body>
+</html>
\ No newline at end of file