Add booktabs for better tables

docs/preamble.tex

@@ -14,6 +14,7 @@
 \usepackage{fancyhdr}
 \usepackage{hyperref}
 \usepackage{subfig}
+\usepackage{booktabs}
 
 \usepackage{listings} %Codigo
 \lstset{language=C, tabsize=4,framexleftmargin=5mm,breaklines=true}