feat: enable instruction: pip install -r requirements.txt

README.md

@@ -21,3 +21,45 @@ git submodule update --init --recursive
 
 The ```--init``` flag initializes the submodules before the update.
 The ```--recursive``` option searches for nested submodules and ensures they are updated too.
+
+## Python Dependencies
+In order to generate the documentation,
+first create a Python 3 virtual environment using the
+`venv` module included in Python 3:
+
+1. Create a virtual Python environment in the directory `venv`: ```python3 -m venv venv```
+1. Activate the virtual Python environment: ```source venv/bin/activate```
+1. Install the packages listed in [requirements.txt](./requirements.txt) using `pip`: ```pip install -r requirements.txt```
+
+## Other Dependencies
+
+The LaTex builder is used for PDF output.
+`Latex` and `pdflatex` need to be installed.
+On a clean (no LaTex compilation yet) operating system like GNU/Debian,
+the following dependencies are required to make Latex compile the sources.
+
+```
+sudo apt install texlive-base --no-install-recommends
+sudo apt-get install texlive-latex-base --no-install-recommends
+sudo apt-get install texlive-latex-extra --no-install-recommends
+sudo apt-get install texlive-lang-german --no-install-recommends
+sudo apt-get install texlive-fonts-extra --no-install-recommends
+```
+
+`Make` and latexmk` is required for document generation.
+
+## Generation via Make
+The top level directory contains a Makefile.
+Tor generation with all output formats use:
+
+`````
+make bundle
+`````
+
+The output files of the final handbook can be found in the subfolder `./bundle`.
+All generated intermediate artifacts and the final output files can be found in the `./build` subfolder.
+
+### Clean up
+
+1. Deactivate the virtual Python environment: ```deactivate```
+2. Clean up the build sources: ```make clean``` and ```rm -r build bundle```

requirements.txt

@@ -0,0 +1,2 @@
+sphinxcontrib-plantuml
+myst-parser