[NumCS] Finish up to the end of Chapter 5 minus 5.4

semester3/numcs/numcs-summary.tex

@@ -74,6 +74,11 @@ The numbering should match the script's numbering exactly (apart from the cases
 
 Many of the figures in this summary were taken directly from the Script or Lecture notes created by Professor Vasile Gradinaru.
 
+We have also taken some explanations and code examples from the slides of our TA, Nils Müller, whose slides can be found
+\color{MidnightBlue}\fbox{\href{https://n.ethz.ch/~muellerni/courses/numcs25.php}{here}}\color{black}
+% TODO: Update this when n.ethz is taken offline completely
+
+
 To add to the one quote regarding Python and type annotation: This is objectively wrong and a really hot take.
 Yes, this applies for small projects, but libraries \textit{DO} need type annotation, as you can't possibly read the entire library's code to use it.
 The reason this quote was even included here is that his coding style is really awful (yes, there were semicolons in his Python-code sometimes)