Update Readme due to new LuaRocks version [ci skip]
Update Readme due to new LuaRocks version [ci skip]

ichramm/LuaNode,ignacio/LuaNode,ichramm/LuaNode,ichramm/LuaNode,ignacio/LuaNode,ichramm/LuaNode,ignacio/LuaNode,ignacio/LuaNode