Add missing parenthesis to integration docs
Add missing parenthesis to integration docs

Noticed by Marc Hawson.

matthiask/django-content-editor,matthiask/django-content-editor,michaelkuty/feincms,feincms/feincms,michaelkuty/feincms,matthiask/feincms2-content,joshuajonah/feincms,joshuajonah/feincms,mjl/feincms,hgrimelid/feincms,joshuajonah/feincms,nickburlett/feincms,feincms/feincms,nickburlett/feincms,mjl/feincms,matthiask/feincms2-content,hgrimelid/feincms,pjdelport/feincms,matthiask/django-content-editor,hgrimelid/feincms,pjdelport/feincms,pjdelport/feincms,mjl/feincms,nickburlett/feincms,matthiask/django-content-editor,nickburlett/feincms,joshuajonah/feincms,michaelkuty/feincms,feincms/feincms,matthiask/feincms2-content,michaelkuty/feincms