add app.json

app.json

@@ -0,0 +1,8 @@
+{
+    "name": "MusicStore",
+    "description": "ASP.NET 5 Sample app",
+    "logo": "https://raw.githubusercontent.com/aspnet/MusicStore/master/src/MusicStore/wwwroot/Images/home-showcase.png",
+    "env": {
+	"BUILDPACK_URL": "https://github.com/heroku/dotnet-buildpack.git"
+    }
+}