From 62cb5c42ce5b17fc8e6b2bc1438831d549122b73 Mon Sep 17 00:00:00 2001
From: Eric Douglas <eric.douglas.mail@gmail.com>
Date: Tue, 28 Mar 2017 07:18:42 -0300
Subject: [PATCH] Update free-books.md

---
 extras/free-books.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/extras/free-books.md b/extras/free-books.md
index 09ff63b..af27cb0 100644
--- a/extras/free-books.md
+++ b/extras/free-books.md
@@ -79,6 +79,7 @@ Name | Author(s)
 ### Computer Architecture
 
 ### Operating Systems
+Name | Author(s)
 :-- | :--: 
 [Operating Systems: Three Easy Pieces](http://pages.cs.wisc.edu/~remzi/OSTEP/) |Remzi H. Arpaci-Dusseau, Andrea C. Arpaci-Dusseau