Include python-yaml dependency in documentation
Include python-yaml dependency in documentation

Fixes https://github.com/enovance/software-factory/issues/1

Change-Id: Ia7a05224d7203e9671384f34b590717c20a480a4

enovance/software-factory,enovance/software-factory,enovance/software-factory,invenfantasy/software-factory,invenfantasy/software-factory,enovance/software-factory,invenfantasy/software-factory,invenfantasy/software-factory,enovance/software-factory,invenfantasy/software-factory