Add horizontal pages in template

[gongcastro]

Pages can be displayed in landscape mode (horizontally) using the lscape LaTeX package.

First we need to define the commands before the header:

 \usepackage{lscape}
 \newcommand{\blandscape}{\begin{landscape}}
 \newcommand{\elandscape}{\end{landscape}}

Then we can just add \blandscape and \elandscape between the lines we want to include in landscape mode.