Update documentation/docs/20-core-concepts/10-routing.md

documentation/docs/20-core-concepts/10-routing.md

@@ -12,7 +12,7 @@ At the heart of SvelteKit is a _filesystem-based router_. The routes of your app
 
 Each route directory contains one or more _route files_, which can be identified by their `+` prefix.
 
-Here are a few simple rules to help you remember how SvelteKit's routing works:
+We'll introduce these files in a moment in more detail, but here are a few simple rules to help you remember how SvelteKit's routing works:
 
 * All files can run on the server
 * All files run on the client except `+server` files