Fix an error in the Entry docstring
Fix an error in the Entry docstring

Thanks to kraut for noticing.

sbaechler/feincms-elephantblog,michaelkuty/feincms-elephantblog,feincms/feincms-elephantblog,joshuajonah/feincms-elephantblog,michaelkuty/feincms-elephantblog,sbaechler/feincms-elephantblog,matthiask/feincms-elephantblog,joshuajonah/feincms-elephantblog,joshuajonah/feincms-elephantblog,matthiask/feincms-elephantblog,matthiask/feincms-elephantblog,michaelkuty/feincms-elephantblog,feincms/feincms-elephantblog,sbaechler/feincms-elephantblog