Update subroutes.md (#1772)
Update subroutes.md (#1772)

* Update subroutes.md

Running through the tutorial found this issue.  It changes the routing to clarify how subroutes are generated and what they are implied to.

* Update subroutes.md

tleskin/guides,skaterdav85/guides,knownasilya/guides,nicobot/guides,skaterdav85/guides,tleskin/guides,nicobot/guides,skaterdav85/guides,nicobot/guides,skaterdav85/guides,knownasilya/guides,tleskin/guides,knownasilya/guides,knownasilya/guides