Add rqscheduler command to RQ Scheduler section of README
Add rqscheduler command to RQ Scheduler section of README

This command exists since 0.6, but was not documented in the README.
mjec/django-rq,ui/django-rq,ui/django-rq,ryanisnan/django-rq,sbussetti/django-rq,mjec/django-rq,lechup/django-rq,sbussetti/django-rq,viaregio/django-rq,viaregio/django-rq,1024inc/django-rq,lechup/django-rq,ryanisnan/django-rq,1024inc/django-rq