Fixing nwdiag issue

Error n°1

make clean html
Removing everything under '_build'...
Running Sphinx v5.2.3

Extension error:
Could not import extension sphinxcontrib.nwdiag (exception: No module named 'sphinxcontrib.nwdiag')
make: *** [Makefile:20: html] Error 2

26/02/24

make clean html
# Erreur n°1
pip install sphinxcontrib.nwdiag
make clean html
# Erreur n°1
pip install sphinxcontrib.nwdiag
pip uninstall sphinxcontrib.nwdiag
pip install sphinxcontrib.nwdiag
vim requirements.txt
make clean html
# Erreur n°1

27/02/24

pip install pip-tools
pip install -r requirements.txt
make clean html
# Erreur n°1