No explanation of T1

[winterqt]

Since #83, all of the Latin script examples contain \usepackage[T1]{fontenc}, but none of them explain what exactly it does and why it's a desired command to use for Latin scripts. Maybe this would be suited for either Lesson 3 and/or Lesson 6.

[davidcarlisle]

yes, you are probably right. at the very least the lesson 3 example

\documentclass[a4paper,12pt]{article} % The document class with options
\usepackage[T1]{fontenc}
% A comment in the preamble
\begin{document}
% This is a comment
This is   a simple
document\footnote{with a footnote}.

This is a new paragraph.
\end{document}

could have a comment on line 2 along the lines of

% select T1 font encoding: suitable for Western European Latin scripts

or some such?