updated facebook embed support text. 
updated facebook embed support text. 
abaylis/mwEmbed,matsuu/mwEmbed,slash851/mwEmbed,panda-os/mwEmbed,abaylis/mwEmbed,bordar/mwEmbed,joanpuigsanz/mwEmbed,alexmilk/mwEmbed,kaltura/mwEmbed,bordar/mwEmbed,FlixMaster/mwEmbed,safarijv/mwEmbed,DBezemer/mwEmbed,safarijv/mwEmbed,slash851/mwEmbed,abaylis/mwEmbed,panda-os/mwEmbed,DBezemer/mwEmbed,tanyaLibatter/mwEmbed,omridevk/mwEmbed,alexmilk/mwEmbed,kaltura/mwEmbed,vladm3/mwEmbed,tanyaLibatter/mwEmbed,slash851/mwEmbed,DBezemer/mwEmbed,panda-os/mwEmbed,kaltura/mwEmbed,omridevk/mwEmbed,matsuu/mwEmbed,omridevk/mwEmbed,joanpuigsanz/mwEmbed,bordar/mwEmbed,bordar/mwEmbed,joanpuigsanz/mwEmbed,panda-os/mwEmbed,alexmilk/mwEmbed,matsuu/mwEmbed,slash851/mwEmbed,matsuu/mwEmbed,vladm3/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,kaltura/mwEmbed,tanyaLibatter/mwEmbed,DBezemer/mwEmbed,alexmilk/mwEmbed,safarijv/mwEmbed,joanpuigsanz/mwEmbed,vladm3/mwEmbed,omridevk/mwEmbed,tanyaLibatter/mwEmbed,abaylis/mwEmbed,safarijv/mwEmbed,vladm3/mwEmbed,FlixMaster/mwEmbed