Fixed NameNode hyperlink on README.md (#299)

diff --git a/README.md b/README.md
index 4f65439..a042659 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@
 ```
 
 Accumulo is now ready to use. Verify your installation by checking the [Accumulo Monitor](http://localhost:9995/)
-and [Hadoop NameNode](http://localhost:50070/) status pages. 
+and [Hadoop NameNode](http://localhost:9870/) status pages. 
 
 Note that the Accumulo shell can be accessed in one of two ways. The easiest is method is to use the `uno` command.
 ```
@@ -144,7 +144,7 @@
 
 You can confirm that everything started by checking the monitoring pages below:
 
- * [Hadoop NameNode](http://localhost:50070/)
+ * [Hadoop NameNode](http://localhost:9870/)
  * [Hadoop ResourceManager](http://localhost:8088/)
  * [Accumulo Monitor](http://localhost:9995/)