DEVDOCS-6122: [update] change limit format (#559)

<!-- Ticket number or summary of work -->
# [DEVDOCS-6122]


## What changed?
changed the format of the limit callout

## Release notes draft

n/a


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

ping {names}


[DEVDOCS-6122]:
https://bigcommercecloud.atlassian.net/browse/DEVDOCS-6122?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

reference/customers.v3.yml

@@ -307,7 +307,7 @@ paths:
                       .customer_create: Error creating customers
     put:
       description: |-
-        Updates Customers. Subresource updates are not supported. Up to 10 customers can be updated in one call.
+        Updates Customers. Subresource updates are not supported. 
 
         **Required Fields**
         * id -- ID of the *Customer* This must be included in the request body
@@ -319,7 +319,9 @@ paths:
         * date_modified
         * origin_channel_id
 
-
+        **Limits**
+        Limit of 10 customers per call.
+        
         **Notes**
 
         * Attributes Values can not be updated using Update a Customer. Use the [Update customer attribute values](/docs/rest-management/customers/customer-attribute-values#upsert-customer-attribute-values) endpoint.