--- a/slides/slides03.tex	Fri Oct 10 12:26:29 2025 +0100
+++ b/slides/slides03.tex	Sat Oct 11 08:33:35 2025 +0100
@@ -35,7 +35,7 @@
   \begin{center}
   \begin{tabular}{ll}
     Email:  & christian.urban at kcl.ac.uk\\
-    Office Hour: & Friday 12 -- 14\\  
+    Office Hour: & Friday 11:30 -- 12:30\\  
   Location: & N7.07 (North Wing, Bush House)\\
   Slides \& Progs: & KEATS\\
   Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\  
@@ -58,6 +58,11 @@
     \end{tikzpicture}
   \end{center}
 
+\begin{textblock}{5}(12,3)
+  \includegraphics[scale=0.35]{qr01}\\
+  \small{}Wifi: \\
+  \small{}Pwd:
+  \end{textblock} 
 \end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%