Update notes.tex

Added hyperref package.

Author: pabloocal

notes.tex

@@ -18,6 +18,7 @@
 \usepackage{enumerate}
 \usepackage{amssymb}
 % \usepackage{amsmath}
+\usepackage{hyperref}
 
 % headers and footers
 \usepackage{fancyhdr}