Add Maddie slides

2020/May/6/README.md

@@ -1,10 +1,11 @@
 # vOPCDE #4
-[YouTube Replay](https://www.youtube.com/watch?v=8_i4X9MMjbE&feature=emb_title
+[YouTube Replay](https://www.youtube.com/watch?v=8_i4X9MMjbE&feature=emb_title)
 ## Keynote: Active Measures
 Thomas Rid Johns Hopkins SAIS, Author of ACTIVE MEASURES
 ## TFW you-get-really-excited-you-patch-diffed-a-0day-used-in-the-wild-but-then-find-out-it-is-the-wrong-vuln
 Maddie Stone (Security Researcher @ Google Project Zero)
 - [Blogpost](https://googleprojectzero.blogspot.com/2020/04/tfw-you-get-really-excited-you-patch.html)
+- [Slides](https://github.com/maddiestone/ConPresentations/blob/master/vOPCDE4.tfw.pdf)
 ## Security Conversations: Ryan Naraine interviews Bill Demirkapi
 Bill Demirkapi Independent Security Researcher
 Ryan Naraine (Host @ Security Conversations)