Fix YAML.

_posts/2016-04-25-stack-smashing.md

@@ -1,6 +1,6 @@
 ---
 layout: post
-title: Lecture: Stack Smashing
+title: "Lecture: Stack Smashing"
 tags: Lecture
 description: Slides from a lecture on low-level software exploits and defenses
 ---

_posts/2017-04-11-tcp.md

@@ -1,6 +1,6 @@
 ---
 layout: post
-title: Lecture: Networking and TCP
+title: "Lecture: Networking and TCP"
 tags: Lecture
 description: Slides from a lecture on various networking topics, including how TCP actually works
 ---