Pontoon: Update German (de) localization of MDN
Pontoon: Update German (de) localization of MDN

Localization authors:
- Michael Köhler <michael.koehler1@gmx.de>

SphinxKnight/kuma,escattone/kuma,mozilla/kuma,a2sheppy/kuma,Elchi3/kuma,jwhitlock/kuma,mozilla/kuma,mozilla/kuma,jwhitlock/kuma,a2sheppy/kuma,escattone/kuma,mozilla/kuma,Elchi3/kuma,Elchi3/kuma,mozilla/kuma,a2sheppy/kuma,SphinxKnight/kuma,a2sheppy/kuma,SphinxKnight/kuma,jwhitlock/kuma,jwhitlock/kuma,Elchi3/kuma,SphinxKnight/kuma,SphinxKnight/kuma,jwhitlock/kuma,escattone/kuma,Elchi3/kuma,SphinxKnight/kuma,a2sheppy/kuma