Added help text for content type choice select in Scraper admin form
Added help text for content type choice select in Scraper admin form

sopier/django-dynamic-scraper,Brother-Simon/django-dynamic-scraper,holgerd77/django-dynamic-scraper,kholidfu/django-dynamic-scraper,DeanSherwin/django-dynamic-scraper,sundisee/django-dynamic-scraper,Brother-Simon/django-dynamic-scraper,kholidfu/django-dynamic-scraper,DeanSherwin/django-dynamic-scraper,c3pko/GovScrape,livepy/django-dynamic-scraper,livepy/django-dynamic-scraper,holgerd77/django-dynamic-scraper,holgerd77/django-dynamic-scraper,livepy/django-dynamic-scraper,sundisee/django-dynamic-scraper,DeanSherwin/django-dynamic-scraper,c3pko/GovScrape,sopier/django-dynamic-scraper,sundisee/django-dynamic-scraper,holgerd77/django-dynamic-scraper,kholidfu/django-dynamic-scraper,Brother-Simon/django-dynamic-scraper,c3pko/GovScrape,Brother-Simon/django-dynamic-scraper,DeanSherwin/django-dynamic-scraper,livepy/django-dynamic-scraper,sopier/django-dynamic-scraper