Update identify-web-user.mdx

fern/docs/pages/plug-sdk/identify-web-user.mdx

@@ -86,7 +86,7 @@ If you prefer a two-level structure, where users are directly associated with an
 |`user_ref`   |A unique user reference that the DevRev app uses for identifying your users. This parameter is required.   |string   |
 |`email`   |The email address of the customer. It's used for sending email notifications of any support messages.   |string   |
 |`display_name`   |The name of the user that's shown on the widget.   |string   |
-|`phone_numbers`   |The mobile number of the customer.   |array   |
+|`phone_numbers`   |The customer's mobile number, which must adhere to the E.164 format.   |array   |
 
 **Attributes for workspaces**                                              
 
@@ -102,7 +102,7 @@ If you prefer a two-level structure, where users are directly associated with an
 |`account_ref`   |A unique reference for the account.    |string   |
 |`display_name`    | The name of the account that's shown on the widget.    |string   |
 |`domains`   |The domain names of the accounts that the users belongs to.   |array   |
-| `phone_numbers`    |The phone number associated with the account.   |array   |
+|`phone_numbers`    |The phone number associated with the account must be in E.164 format.   |array   |
 
 ## Pass the session token