Docs: Update researcher credit on the Acknowledgements page

Bug: 28837114
Change-Id: I61d7fdb12958d7f863e140620f39b3fe5ad62660
diff --git a/src/security/overview/acknowledgements.jd b/src/security/overview/acknowledgements.jd
index 85d9d86..f15d4b7 100644
--- a/src/security/overview/acknowledgements.jd
+++ b/src/security/overview/acknowledgements.jd
@@ -76,6 +76,8 @@
 
 <p>Hongil Kim (<a href="mailto:hongilk@kaist.ac.kr">hongilk@kaist.ac.kr</a>) of System Security Lab, KAIST</p>
 
+<p>Imre Rad of <a href="http://www.search-lab.hu/">Search-Lab Ltd.</a></p>
+
 <p>Jake Valletta of Mandiant, a FireEye company</p>
 
 <p>James Forshaw of Google Project Zero</p>