added cross-title links

Signed-off-by: Fabrice Flore-Thébault <[email protected]>

Author: themr0c

modules/configuring/proc-provisioning-your-custom-configuration.adoc

@@ -59,9 +59,11 @@ Optional fields::
 
 `app.title`:::
 Optionally, enter your {product-short} instance display name, such as _<{product}>_.
+See link:{customizing-book-url}#customizing-your-product-title[Customizing your {product-short} title].
 
 `app.baseURL`, `backend.baseURL` and `backend.cors.origin`:::
 Optionally, enter your {product-short} external URL, such as pass:c,a,q[{my-product-url}].
+See link:{customizing-book-url}#customizing-your-product-base-url[Customizing your {product-short} base URL].
 
 `app.branding`:::
 Optionally, enter your appearance customization configuration.