Shiny Binder for Apps in Nested Folders

For this R package: 

https://github.com/cytoscape/cyjShiny

I have a demo Shiny application in a sub-folder: 

https://github.com/cytoscape/cyjShiny/tree/master/inst/demos/tinyApp

How can I link to it? The link below does not appear to work: 

https://mybinder.org/v2/gh/cytoscape/cyjShiny/master?urlpath=shiny/inst/demos/tinyApp/