Update LICENSE

added invention reference number

LICENSE

@@ -3,7 +3,7 @@ The copyrights of this software are owned by Duke University. As such, two licen
 2. A custom license with Duke University, for commercial use or for use without the MIT license restrictions. 
 
 As a recipient of this software, you may choose which license to receive the code under. Outside contributions to the Duke owned code base cannot be accepted unless the contributor transfers the copyright to those changes over to Duke University.
-To enter a custom license agreement without the MIT license restrictions, please contact the Digital Innovations department at Duke Office for Translation & Commercialization (OTC) (https://olv.duke.edu/software/) at [email protected].
+To enter a custom license agreement without the MIT license restrictions, please contact the Digital Innovations department at Duke Office for Translation & Commercialization (OTC) (https://olv.duke.edu/software/) at [email protected] with reference to “OLV File No. 007674” in your email. 
 
 Please note that this software is distributed AS IS, WITHOUT ANY WARRANTY; and without the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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