[Doc] remove subnet sharing limitation in AWS (#4239)

## Changes
Remove the warning about sharing subnets in AWS

## Tests
<!-- 
How is this tested? Please see the checklist below and also describe any
other relevant tests
-->

- [x] relevant change in `docs/` folder

docs/resources/mws_workspaces.md

@@ -26,7 +26,7 @@ To get workspace running, you have to configure a couple of things:
 
 * [databricks_mws_credentials](mws_credentials.md) - You can share a credentials (cross-account IAM role) configuration ID with multiple workspaces. It is not required to create a new one for each workspace.
 * [databricks_mws_storage_configurations](mws_storage_configurations.md) - You can share a root S3 bucket with multiple workspaces in a single account. You do not have to create new ones for each workspace. If you share a root S3 bucket for multiple workspaces in an account, data on the root S3 bucket is partitioned into separate directories by workspace.
-* [databricks_mws_networks](mws_networks.md) - (optional, but recommended) You can share one [customer-managed VPC](https://docs.databricks.com/administration-guide/cloud-configurations/aws/customer-managed-vpc.html) with multiple workspaces in a single account. You do not have to create a new VPC for each workspace. However, you cannot reuse subnets or security groups with other resources, including other workspaces or non-Databricks resources. If you plan to share one VPC with multiple workspaces, be sure to size your VPC and subnets accordingly. Because a Databricks [databricks_mws_networks](mws_networks.md) encapsulates this information, you cannot reuse it across workspaces.
+* [databricks_mws_networks](mws_networks.md) - (optional, but recommended) You can share one [customer-managed VPC](https://docs.databricks.com/administration-guide/cloud-configurations/aws/customer-managed-vpc.html) with multiple workspaces in a single account. However, Databricks recommends using unique subnets and security groups for each workspace. If you plan to share one VPC with multiple workspaces, be sure to size your VPC and subnets accordingly. Because a Databricks [databricks_mws_networks](mws_networks.md) encapsulates this information, you cannot reuse it across workspaces.
 * [databricks_mws_customer_managed_keys](mws_customer_managed_keys.md) - You can share a customer-managed key across workspaces.
 
 ```hcl