docs: Add tip boxes for diagnosing config/devicetree changes

docs/docs/config/index.md

@@ -82,6 +82,12 @@ The list of available settings is determined by various files in ZMK whose names
 
 See [Zephyr's Kconfig documentation](https://docs.zephyrproject.org/3.5.0/build/kconfig/index.html) for more details on Kconfig files.
 
+:::tip
+
+You can investigate the [final set of configuration settings](../troubleshooting/building-issues.md#configuration-setting-issues) that are in effect during a build to diagnose any issues with changing Kconfig settings.
+
+:::
+
 ### KConfig Value Types
 
 #### bool
@@ -131,6 +137,12 @@ Devicetree properties apply to specific nodes in the tree instead of globally. T
 
 See [Zephyr's Devicetree guide](https://docs.zephyrproject.org/3.5.0/build/dts/index.html) for more details on Devicetree files.
 
+:::tip
+
+You can investigate the [final combined Devicetree](../troubleshooting/building-issues.md#devicetree-related-issues) produced during a build to diagnose any issues with changing Devicetree nodes.
+
+:::
+
 ### Changing Devicetree Properties
 
 Since Devicetree properties are set for specific nodes in the tree, you will first need to find the node you want to configure. You will typically need to