improve TOC

docs/developer/best-practices/index.asciidoc

@@ -122,6 +122,14 @@ In addition, if users are relying on state stored in your app’s URL as
 part of your public contract, keep in mind that you may also need to
 provide backwards compatibility for bookmarked URLs.
 
+[discrete]
+=== Routing, Navigation and URL
+
+The {kib} platform provides a set of tools to help developers build consistent experience around routing and browser navigation.
+Some of that tooling is inside `core`, some is available as part of various plugins.
+
+<<kibana-navigation, Follow this guide>> to get an idea of available tools and common approaches for handling routing and browser navigation.
+
 [discrete]
 === Testing & stability
 
@@ -130,10 +138,9 @@ Review:
 * <<development-unit-tests>>
 * <<stability>>
 * <<security-best-practices>>
-* <<kibana-navigation>>
+
+include::navigation.asciidoc[leveloffset=+1]
 
 include::stability.asciidoc[leveloffset=+1]
 
 include::security.asciidoc[leveloffset=+1]
-
-include::navigation.asciidoc[leveloffset=+1]