docs: restful.rst: Added a link to the github issue
docs: restful.rst: Added a link to the github issue

Added a link from the RESTful API to the RESTful issue on github.

devilry/devilry-django,vegarang/devilry-django,vegarang/devilry-django,devilry/devilry-django,devilry/devilry-django,devilry/devilry-django