[NumCS] Reference more code

semester3/numcs/numcs-summary.tex

@@ -120,6 +120,11 @@ A few things to be familiar with for the exam to be quicker at solving exercises
     \item Learn the basics of \texttt{Sympy}, as that will spare you having to do integrals. See section \ref{sec:sympy} for an introduction to \texttt{Sympy}.
 \end{itemize}
 
+\fhlc{Cyan}{Code Examples}
+
+We tried to add short and easily understandable code examples wherever possible.\\
+Complete code (with many visualisations), also for topics not covered in this summary, can be found \hlhref{https://github.com/RobinB27/numcs25}{here}.
+
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