Update Readme.txt
Update Readme.txt

Add reference to migrating away from msbuild based nuget install.
ruisebastiao/CefSharp,Haraguroicha/CefSharp,yoder/CefSharp,rlmcneary2/CefSharp,NumbersInternational/CefSharp,Livit/CefSharp,battewr/CefSharp,windygu/CefSharp,jamespearce2006/CefSharp,zhangjingpu/CefSharp,illfang/CefSharp,NumbersInternational/CefSharp,AJDev77/CefSharp,windygu/CefSharp,Haraguroicha/CefSharp,ITGlobal/CefSharp,battewr/CefSharp,illfang/CefSharp,zhangjingpu/CefSharp,twxstar/CefSharp,zhangjingpu/CefSharp,battewr/CefSharp,zhangjingpu/CefSharp,ITGlobal/CefSharp,ITGlobal/CefSharp,NumbersInternational/CefSharp,haozhouxu/CefSharp,windygu/CefSharp,wangzheng888520/CefSharp,gregmartinhtc/CefSharp,haozhouxu/CefSharp,haozhouxu/CefSharp,VioletLife/CefSharp,ruisebastiao/CefSharp,illfang/CefSharp,gregmartinhtc/CefSharp,dga711/CefSharp,rlmcneary2/CefSharp,Livit/CefSharp,yoder/CefSharp,VioletLife/CefSharp,ruisebastiao/CefSharp,VioletLife/CefSharp,gregmartinhtc/CefSharp,haozhouxu/CefSharp,illfang/CefSharp,dga711/CefSharp,joshvera/CefSharp,twxstar/CefSharp,jamespearce2006/CefSharp,wangzheng888520/CefSharp,joshvera/CefSharp,Haraguroicha/CefSharp,gregmartinhtc/CefSharp,ITGlobal/CefSharp,jamespearce2006/CefSharp,Haraguroicha/CefSharp,wangzheng888520/CefSharp,NumbersInternational/CefSharp,dga711/CefSharp,dga711/CefSharp,Haraguroicha/CefSharp,Livit/CefSharp,twxstar/CefSharp,wangzheng888520/CefSharp,yoder/CefSharp,jamespearce2006/CefSharp,Livit/CefSharp,joshvera/CefSharp,windygu/CefSharp,battewr/CefSharp,joshvera/CefSharp,jamespearce2006/CefSharp,AJDev77/CefSharp,rlmcneary2/CefSharp,yoder/CefSharp,AJDev77/CefSharp,twxstar/CefSharp,rlmcneary2/CefSharp,AJDev77/CefSharp,VioletLife/CefSharp,ruisebastiao/CefSharp