docs: fix translations.rst
docs: fix translations.rst

"Transifex" is not a reference, so remove the _.

liqd/adhocracy,SysTheron/adhocracy,phihag/adhocracy,alkadis/vcv,alkadis/vcv,phihag/adhocracy,phihag/adhocracy,liqd/adhocracy,DanielNeugebauer/adhocracy,DanielNeugebauer/adhocracy,liqd/adhocracy,DanielNeugebauer/adhocracy,SysTheron/adhocracy,DanielNeugebauer/adhocracy,alkadis/vcv,SysTheron/adhocracy,phihag/adhocracy,liqd/adhocracy,alkadis/vcv,phihag/adhocracy,alkadis/vcv,DanielNeugebauer/adhocracy