Update on Overleaf.

main.tex

@@ -77,14 +77,14 @@ code-for-last-col = \color{blue}
 	\begin{figure}[H]
 		\centering
 		\includegraphics[width=0.5\linewidth]{mug-neighbourhoods.png}
-		\caption{The prototypical example of a manifold -- a mug. Image source: [13]}
+		\caption{The prototypical example of a manifold a mug. Image source: [13]}
 		\label{fig:mug-neighbourhoods}
 	\end{figure}
 
 	\begin{figure}[H]
 		\centering
 		%$ \captionsetup{width=.75\linewidth}
-		\includegraphics[width=0.27\linewidth]{Contractible loops.png}
+		\includegraphics[width=0.2\linewidth]{Contractible loops.png}
 		\caption{Diagram showing two double tori with (non)-contractible paths.  Image source[7]}
 		\label{fig:CoLoop}
 	\end{figure}