Update index.yml

Updating date

Author: JasonWHowell

articles/hdinsight/index.yml

@@ -9,7 +9,7 @@ metadata:
   ms.author: hrasheed
   ms.service: hdinsight
   ms.topic: landing-page
-  ms.date: 03/26/2019
+  ms.date: 06/13/2019
 abstract:
   description: Learn how to use Azure HDInsight to analyze streaming or historical data. Tutorials and other documentation show you how to create clusters, process and analyze big data, and develop solutions using the most popular open-source frameworks, like Apache Hadoop, Apache Spark, Apache Hive, Apache LLAP, Apache Kafka, Apache Storm, and Microsoft Machine Learning Server.<p>Azure HDInsight is a managed, full-spectrum, open-source analytics service for enterprises. HDInsight is a cloud service that makes it easy, fast, and cost-effective to process massive amounts of data. HDInsight also supports a broad range of scenarios, like extract, transform, and load (ETL); data warehousing; machine learning; and IoT.</p>
   aside: