Welcome, very nice edit.
One thing is that paths should connect on intersections, like this path
https://www.openstreetmap.org/way/1162803504
If paths are not connected apps won't be able to plot a route. Maybe they are not connected because a bridge is missing? In this case, obviously, they should be.

iD editor will show a message on the left to easily connect it with one click when you select the new path. Also, it shows warnings when you save your changes, don't forget to check them out.