add WMF logo

Change-Id: I69303a94ddfd3eb946d46dcec8343506246dbd64
Merge remote-tracking branch 'origin/master' into HEAD

6bdfb76f987f58b6dead38f8fb04778c0b0138aa add WMF logo

Change-Id: I922d8497b823f106af45fb3bc262d8ccaa0ecc62