DEVDOCS-6055: [update] update per Akshat (#718)

<!-- Ticket number or summary of work -->
# [DEVDOCS-6055]


## What changed?
Made changes per Akshat's review

## Release notes draft

Enhancement
<!-- Provide an entry for the release notes using simple, conversational
language. Don't be too technical. Explain how the change will benefit
the merchant and link to the feature.

Examples:
* The newly-released [X feature] is now available to use. Now, you’ll be
able to [perform Y action].
* We're happy to announce [X feature], which can help you [perform Y
action].
* [X feature] helps you to create [Y response] using the [Z query
parameter]. Now, you can deliver [ex, localized shopping experiences for
your customers].
* Fixed a bug in the [X endpoint]. Now the [Y field] will appear when
you click [Z option]. -->
* 

## Anything else?
<!-- Add related PRs, salient notes, additional ticket numbers, etc. -->

ping {names}


[DEVDOCS-6055]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-6055?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

reference/customers.v3.yml

@@ -807,7 +807,7 @@ paths:
         Returns the global-level customer settings.
 
         **Notes:**
-        * Global customer settings don't apply when the `default_customer_group_id` is present.
+        * Global customer settings don't apply on a channel when there are channel specific settings configured through [Channel Settings](/docs/rest-management/customers/channel-settings).
 
       summary: Get Customer Settings
       operationId: getCustomersSettings
@@ -888,8 +888,8 @@ paths:
 
         **Notes:**
 
-         * `null` indicates that there is no override per given channel and values are inherited from the global level.
-         * Global customer settings don't apply when the `default_customer_group_id` is present.
+         * `null` value configuration indicates that there is no override provided for a given channel; thus, values are inherited from [Global Settings](/docs/rest-management/customers/global-settings).
+         
       summary: Get Customer Settings per Channel
       operationId: getCustomersSettingsChannel
       parameters: