[idea] make this as a web application

[contrun]

It would be great if we can convert a document into a presentation using only web technologies. I don't know how to achieve that technically. But I think it is possible. Smos, for example, has the same interface for the web and terminal. It is easier for smos to do such thing, as it has a backend service. I think porting patat to a pure front end web application like asterius pandoc is also possible.