Adding reference to HCatalog blog tutorial

Author: romainr

README.md

@@ -1,4 +1,8 @@
-hadoop-tutorials-examples
-=========================
+Hadoop Tutorials and Examples
+=============================
+
+Source, data and tutorials of the Hue video series, the Web UI for Apache Hadoop.
+
+
+- [How to access Hive in Pig with HCatalog in Hue](http://gethue.tumblr.com/post/56804308712/hadoop-tutorial-how-to-access-hive-in-pig-with) | [HCatalog](hcatalog)
 
-Source, data and turotials of the blog post video series of Hue, the Web UI for Hadoop.