Remove user from team API update documentation (#1066)

The current documentation says to delete a user based on the user id
however the API expects the username.
Usernames for teams are unique.
This PR updates
[doc](https://developer.hashicorp.com/terraform/enterprise/api-docs/team-members#delete-a-user-from-team-with-user-id
) to say username instead of user id

Jira ticket: https://hashicorp.atlassian.net/browse/IPL-7085

Author: netramali

content/terraform-docs-common/docs/cloud-docs/api-docs/team-members.mdx

@@ -160,9 +160,9 @@ curl \
   https://app.terraform.io/api/v2/teams/257525/relationships/organization-memberships
 ```
 
-## Delete a User from Team (With user ID)
+## Delete a User from Team (With username)
 
-This method removes multiple users from a team using the user ID. Both users and teams must already exist. This method only removes a user from this team. It does not delete that user overall.
+This method removes multiple users from a team using the username. Both users and teams must already exist. This method only removes a user from this team. It does not delete that user overall.
 
 `DELETE /teams/:team_id/relationships/users`
 
@@ -179,7 +179,7 @@ Properties without a default value are required.
 | Key path      | Type   | Default | Description                         |
 | ------------- | ------ | ------- | ----------------------------------- |
 | `data[].type` | string |         | Must be `"users"`.                  |
-| `data[].id`   | string |         | The ID of the user to remove from this team. |
+| `data[].id`   | string |         | The username of the user to remove from this team. |
 
 ### Sample Payload