Update document to reflect new features of ADL support in 2.8.0 release.
diff --git a/hadoop-project/src/site/markdown/index.md.vm b/hadoop-project/src/site/markdown/index.md.vm
index 229691e..5c640b8 100644
--- a/hadoop-project/src/site/markdown/index.md.vm
+++ b/hadoop-project/src/site/markdown/index.md.vm
@@ -41,6 +41,9 @@
 
     *   Add posixGroups support for LDAP groups mapping service.
 
+    *   Support integration with Azure Data Lake (ADL) as an alternative
+        Hadoop-compatible file system.
+
 *   HDFS
 
     *   WebHDFS enhancements: integrate CSRF prevention filter in WebHDFS,