in point 1: clarify that adding the Reports addon is also needed
before point 2: login with admin/admin or give access to reports to another user (default user Joy have no access to reports)
before point 3: add countable entity attributes manually because the mentioned project doesn't have its. If a project that has these attributes can be found, then replace the project link at the beginning.
in point 3: clarify that the order of attributes is important to build the diagram correctly
Environment
Description of the bug or enhancement
See §3.5. Report with Chart Output