RHIDP-6571 - remove configuring the base URL for Operator-based

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

@@ -20,8 +20,12 @@ It contains one secret per line in `KEY=value` form.
 
 . Author your custom `{my-app-config-file}` file.
 This is the main {product-short} configuration file.
-+
-The `baseUrl` field is mandatory in your `{my-app-config-file}` file to ensure proper functionality of {product-short}. You must specify the `baseUrl` in both the `app` and `backend` sections to avoid errors during initialization.
+
+** To prepare a deployment with the {product} Operator on OpenShift, you can start with an empty file.
+Creating a custom file, even an empty one, is required to avoid the {product} Operator to revert user edits during upgrades.
+
+** To prepare a deployment with the {product} Helm chart, or on Kubernetes, add the `baseUrl` field in your `{my-app-config-file}` file to ensure proper functionality of {product-short}.
+Specify the `baseUrl` in both the `app` and `backend` sections to avoid errors during initialization.
 +
 .Configuring the `baseUrl` in `{my-app-config-file}`
 ====
@@ -43,13 +47,13 @@ backend:
     origin: {my-product-url}
 ----
 ====
-+
-Optionally, enter your configuration such as:
 
-* link:{authentication-book-url}[{authentication-book-title}].
-* link:{authorization-book-url}[{authorization-book-title}].
-* link:{customizing-book-url}[Customization].
-* xref:proc-configuring-an-rhdh-instance-with-tls-in-kubernetes_running-behind-a-proxy[Configure your {ocp-short} integration].
+** Optionally, enter your configuration such as:
+
+*** link:{authentication-book-url}[{authentication-book-title}].
+*** link:{authorization-book-url}[{authorization-book-title}].
+*** link:{customizing-book-url}[Customization].
+*** xref:proc-configuring-an-rhdh-instance-with-tls-in-kubernetes_running-behind-a-proxy[Configure your {ocp-short} integration].
 
 . Provision your custom configuration files to your {ocp-short} cluster.