docs: update the required permissions section of the readme

README.md

@@ -59,26 +59,28 @@ unless real values don't help users know what to change.
 
 ```
 
-### Required IAM access policies
+### Required access policies
 
 <!-- PERMISSIONS REQUIRED TO RUN MODULE
 If this module requires permissions, uncomment the following block and update
 the sample permissions, following the format.
-Replace the sample Account and IBM Cloud service names and roles with the
-information in the console at
-Manage > Access (IAM) > Access groups > Access policies.
+Replace the 'Sample IBM Cloud' service and roles with applicable values.
+The required information can usually be found in the services official
+IBM Cloud documentation.
+To view all available service permissions, you can go in the
+console at Manage > Access (IAM) > Access groups and click into an existing group
+(or create a new one) and in the 'Access' tab click 'Assign access'.
 -->
 
 <!--
 You need the following permissions to run this module:
 
-- IAM services
+- Service
+    - **Resource group only**
+        - `Viewer` access on the specific resource group
     - **Sample IBM Cloud** service
         - `Editor` platform access
-        - `Manager` platform access
-- Account management services
-    - **Sample account management** service
-        - `Editor` platform access
+        - `Manager` service access
 -->
 
 <!-- NO PERMISSIONS FOR MODULE