Changes are made in the .rst files at sphinx/source
After editing the HTML sites have to be generated. To avoid merge conflicts please make changes only in the develop branch and push it afterwards.
sphinx-build ./sphinx/source/ openatlas/static/manual
After finishing changes it is a good practice to delete the openatlas/static/manual directory and generate the whole manual again. Otherwise sometimes not all changes (e.g. menu structure) may be propagated correctly.
apt install python3-sphinx python3-sphinx-rtd-theme