some minor improvements

Author: thomasWeise

README.md

@@ -31,6 +31,7 @@ Die Slides zum Kurs in deutscher Sprache können unter <https://thomasweise.gith
 6. [Beispiele Herunterladen](https://thomasweise.github.io/programmingWithPythonSlidesDE/06_beispiele_herunterladen.pdf)
 7. [Der Datentyp `int`](https://thomasweise.github.io/programmingWithPythonSlidesDE/07_int.pdf)
 8. [Der Datentyp `float`](https://thomasweise.github.io/programmingWithPythonSlidesDE/08_float.pdf)
+9. [Zwischenspiel: Python Dokumentation und Informationsquellen](https://thomasweise.github.io/programmingWithPythonSlidesDE/09_dokumentation.pdf)
 
 ### 2.3. The Slides in English
 The slides for the course are available at <https://thomasweise.github.io/programmingWithPythonSlides> and also listed below.

bookbase

@@ -107,7 +107,7 @@
 Also, it is available in Chinese.
 
 As example, let us imagine that you want to learn more about the function~\pythonilIdx{ceil}.
-In \cref{fig:pythondoc01website}, we open a browser and visit the \citetitle{PSF:P3D}~\cite{PSF:P3D} at~\url{https://docs.python.org/3}.
+In \cref{fig:pythondoc01website}, we open a browser and visit the \citetitle{PSF:P3D}~\cite{PSF:P3D}.
 On this page, you will either directly see a drop-down box where you can choose your favorite language or you can find it by clicking the \menu{\threeBarButton} at on the top-left corner of the website.
 In the menu that opens in \cref{fig:pythondoc02language}, you can change the language and, e.g., select simplified Chinese~(简体中文)~\cite{SCR1956ROTSCOPTSCCS1} if that is your preferred language.
 I will not do so and instead continue here in English.
@@ -491,7 +491,7 @@
 %
 \begin{enumerate}%
 %
-\item Answers for programming problems that we find on websites, via \pgls{AI} tools, or other non-authoritative sources may be wrong or incomplete.%
+\item Answers for programming problems that we find on websites, via \pgls{AI} tools, or other non-authoritative sources may be wrong, incomplete, or outdated.%
 %
 \item We must only ever use code that we fully and completely understand. %
 This means that we should never use any function, object, or tool without knowing its specification. %
@@ -551,7 +551,7 @@
 %
 Additionally, there are differences between \pgls{AI} tools and human-written sources.
 \pgls{AI} tools can make errors that no human would make.
-An illustrative example in the \python\ world is given in~\cite{BSHETB:VSK2025CIC}, where it is documented that Microsoft Copilot renamed a class in a misleading way, leading to a particularly hard-to-find error.
+An illustrative example in the \python\ world is given in~\citetitle{BSHETB:VSK2025CIC}~\cite{BSHETB:VSK2025CIC}, where it is documented that Microsoft Copilot renamed a class in a misleading way, leading to a particularly hard-to-find error.
 \Cref{fig:aiDBdelete} shows an even worse example:
 A vibe coding \pgls{AI} deleted the \glsreset{db}\gls{db} of a company, fabricated test results, and later explained that it intentionally ignored the directives given to it.
 This clearly shows that we need to be careful with the tools that we use.