In this video I explained how to develop / convert the existing website into the windows 10 app using Windows app studio. No coding required just follow steps and use the hosted web app option in app studio and grab details from dev dashboard.
create new – hosted web app
setting – change app logo
change description & change store identity (dev.windows.com)
click save – finish – generate
VS source code
Installable package for local pc
Publishable pakage for windows store