index.tex

% !TeX root = ../index.tex
\chapter{Syntax}
\graphicspath{{2-syntax/images/}}

\section{Exercise 1}

\url{https://intweb.bucks.ac.uk/~21606555/oos/2-syntax/ex1.php}
\captionsetup{type=figure}\captionof{figure}{ex1.php}
\subfile{pyg/src/2-syntax/ex1}

\begin{figure}[H]
  \caption{Output of exercise 1}
  \centering
  \includegraphics[width=\textwidth]{ex1}
\end{figure}