chg: [firstcon22] Final tweaks

2022-06-28-FIRSTCON22/content.tex

@@ -364,7 +364,7 @@ There will inevitably be integration between local tools and Cerebrate. Why not
         \item Based on a configuration file, user interfaces can be created to visualise data and instruct local tools to perform operations
     \end{itemize}
     \begin{center}
-        \includegraphics[width=0.7\linewidth]{pictures/github-local-tool.png}
+        \includegraphics[width=0.9\linewidth]{pictures/github-local-tool.png}
     \end{center}
 \end{frame}