add missing file - quick start guide in markdown was in Makefile already but I forgot to check the actual file in
add missing file - quick start guide in markdown was in Makefile already but I forgot to check the actual file in

git-svn-id: cc913a7f7b4e3b8bac01cff72f0fc87362e4d502@1425 8dd45c8f-be11-0410-86c3-e0da43b70fc1

maekitalo/tntnet,maekitalo/tntnet,maekitalo/tntnet,maekitalo/tntnet,OlafRadicke/tntnet,maekitalo/tntnet,OlafRadicke/tntnet,OlafRadicke/tntnet,OlafRadicke/tntnet,OlafRadicke/tntnet,maekitalo/tntnet