Update preamble

Updated preamble so that the "hyperref" package is loaded last. This follows "hyperref" documentation and may avoid compatibility issues with "etoolbox" and other packages.

Author: pabloocal

notes.tex

@@ -18,7 +18,6 @@
 \usepackage{enumerate}
 \usepackage{amssymb}
 % \usepackage{amsmath}
-\usepackage{hyperref}
 
 % headers and footers
 \usepackage{fancyhdr}
@@ -31,6 +30,10 @@
 \fancyhead[LO,RE]{\sc \footnotesize \leftmark}
 \fancyfoot[C]{\thepage}
 
+% following hyperref documentation, 
+% we load hyperref as the last package 
+\usepackage{hyperref}
+
 % problem and example numbering
 \newtheorem{problem}{Problem}[chapter]
 \newtheorem{example}{Example}[chapter]