moved from https://github.com/wmde/phragile/issues/98
from @Dereckson:
Currently, the documentation explains well the OAuth part to do in Phabricator.
The documentation should also cover the additional points:
A summary. What assumptions Phragile does regarding Phabricator?
Create a project-as-a-tag to mark tasks in review state (but see T100188)
Add a custom field in Maniphest (but see T100187)