Update links

sites/upsun/src/get-started/here/configure/_index.md

@@ -33,9 +33,9 @@ The generated configuration varies slightly based on your answers to these promp
 However, the structure of the configuration file remains similar to the following:
 
 ```yaml {location=".upsun/config.yaml"}
-{{< code-link destination="/create-apps/app-reference.html" text="applications:" title="Top-level key for all applications" >}}
+{{< code-link destination="/create-apps/app-reference/single-runtime-image.html" text="applications:" title="Top-level key for all applications" >}}
     # Configuration for all applications within an environment.
-    {{< code-link destination="/create-apps/app-reference.html" text="myapp:" title="Configuration for a unique application" >}}
+    {{< code-link destination="/create-apps/app-reference/single-runtime-image.html" text="myapp:" title="Configuration for a unique application" >}}
         # configuration for the application 'myapp'
 
 {{< code-link destination="/add-services.html" text="services:" title="Top-level key for all services" >}}