Update README.markdown
Update README.markdown

removed copyright notices. already represented in LICENSE file.
bordar/mwEmbed,abaylis/mwEmbed,FlixMaster/mwEmbed,joanpuigsanz/mwEmbed,abaylis/mwEmbed,vladm3/mwEmbed,matsuu/mwEmbed,FlixMaster/mwEmbed,FlixMaster/mwEmbed,matsuu/mwEmbed,joanpuigsanz/mwEmbed,abaylis/mwEmbed,alexmilk/mwEmbed,alexmilk/mwEmbed,tanyaLibatter/mwEmbed,vladm3/mwEmbed,safarijv/mwEmbed,tanyaLibatter/mwEmbed,kaltura/mwEmbed,slash851/mwEmbed,vladm3/mwEmbed,safarijv/mwEmbed,slash851/mwEmbed,omridevk/mwEmbed,panda-os/mwEmbed,safarijv/mwEmbed,kaltura/mwEmbed,panda-os/mwEmbed,joanpuigsanz/mwEmbed,alexmilk/mwEmbed,bordar/mwEmbed,tanyaLibatter/mwEmbed,kaltura/mwEmbed,omridevk/mwEmbed,slash851/mwEmbed,matsuu/mwEmbed,abaylis/mwEmbed,alexmilk/mwEmbed,matsuu/mwEmbed,omridevk/mwEmbed,FlixMaster/mwEmbed,omridevk/mwEmbed,panda-os/mwEmbed,safarijv/mwEmbed,panda-os/mwEmbed,joanpuigsanz/mwEmbed,vladm3/mwEmbed,slash851/mwEmbed,bordar/mwEmbed,bordar/mwEmbed,tanyaLibatter/mwEmbed,kaltura/mwEmbed