Pontoon: Update Greek (el) localization of MDN
Pontoon: Update Greek (el) localization of MDN

Localization authors:
- Ioannis Protonotarios <ioannis@protonotarios.eu>

a2sheppy/kuma,mozilla/kuma,safwanrahman/kuma,yfdyh000/kuma,safwanrahman/kuma,escattone/kuma,Elchi3/kuma,yfdyh000/kuma,jwhitlock/kuma,jwhitlock/kuma,safwanrahman/kuma,Elchi3/kuma,safwanrahman/kuma,Elchi3/kuma,SphinxKnight/kuma,mozilla/kuma,safwanrahman/kuma,escattone/kuma,Elchi3/kuma,SphinxKnight/kuma,mozilla/kuma,yfdyh000/kuma,a2sheppy/kuma,SphinxKnight/kuma,SphinxKnight/kuma,mozilla/kuma,jwhitlock/kuma,SphinxKnight/kuma,safwanrahman/kuma,yfdyh000/kuma,a2sheppy/kuma,yfdyh000/kuma,yfdyh000/kuma,jwhitlock/kuma,a2sheppy/kuma,SphinxKnight/kuma,escattone/kuma,a2sheppy/kuma,jwhitlock/kuma,Elchi3/kuma,mozilla/kuma