Update LICENSE.md Again

The conversion from Word Doc to Markdown messed up the top
of the LICENSE file. This corrects the issue.

This updates the license to match that found at:

  https://opensource.gsfc.nasa.gov/projects/GEOS-5/index.php

Author: mathomp4

LICENSE.md

@@ -1,7 +1,9 @@
 ```
-Copyright (c) 2003-2018 United States Government as represented by 
-the Admistrator of the National Aeronautics and Space Administration.  
-All Rights Reserved.
+
+    	NASA OPEN SOURCE SOFTWARE AGREEMENT
+	
+
+NASA OPEN SOURCE AGREEMENT VERSION 1.3
 
 THIS OPEN  SOURCE  AGREEMENT  ("AGREEMENT") DEFINES  THE  RIGHTS  OF USE,
 REPRODUCTION,  DISTRIBUTION,  MODIFICATION AND REDISTRIBUTION OF CERTAIN 
@@ -129,7 +131,7 @@ manner on or through a medium customarily used for software exchange.
 B.  Each Recipient must ensure that the following copyright notice
 appears prominently in the Subject Software:
 
-Copyright © 2003-2007 United States Government as represented by the
+Copyright © 2003-2018 United States Government as represented by the
 Administrator of the National Aeronautics and Space Administration.  All
 Rights Reserved.