Context

The repository contains several Sphinx subprojects.

Each subproject defines a Makefile. If someone changes one Makefile, this could not be ported to the other Makefiles, leading to having projects with a different set of commands.

Instead, adapt the main Makefile to support building subprojects.

Proposal

1. Adapt the main Makefile to support “sourcePath” as an argument. If the parameter is not provided, the command should build the docs for the main project by default.
2. Delete all Makefile from subprojects.