Use the official markdown version of the GPLv3

Add myself to AUTHORS.md

Change-Id: I9861311cba8f03277dad6521fb020c3bbbe628c5
diff --git a/AUTHORS.md b/AUTHORS.md
index 76fd14d..c9bcff7 100644
--- a/AUTHORS.md
+++ b/AUTHORS.md
@@ -15,3 +15,4 @@
 
 * Eric Newberry         <http://ericnewberry.com/>
 * Jiewen Tan            <alanwake@ucla.edu>
+* Davide Pesavento      <https://www.linkedin.com/in/davidepesavento>