Change file directory and minor adaption in README

README.md

@@ -7,7 +7,7 @@ We are using `mkdocs` as the static site generator to generate the website from
 
 You can preview the website after cloning it. First you need to install `mkdocs` and the used theme by:
 ```sh
-pip install mkdocs mkdocs-material mkdocs-glightbox mkdoxy
+pip install mkdocs mkdocs-material mkdocs-glightbox mkdoxy mkdocs-site-urls
 ```
 
 Then you can change the directory to the repository and run

mkdocs.yml

@@ -337,8 +337,8 @@ nav:                                      # Customizes the main navigation struc
       - Include Libraries: get-involved/including-libraries.md
       - CMake Presets: get-involved/cmake-presets.md
     - Module Development:
-      - Module Structure in c++: get-involved/style/cpp-modularization.md
-      - Module Structure in Python: get-involved/style/python-modularization.md
+      - Module Structure in c++: get-involved/modularization/cpp-modularization.md
+      - Module Structure in Python: get-involved/modularization/python-modularization.md
     - Style Guide:
       - C++: get-involved/style/cpp.md
       - Python: get-involved/style/python.md