Add email details to User Create description (#384)

* Add email details to User Create description

Author: bbiggerr

openapi.yaml

@@ -1885,10 +1885,12 @@ paths:
       - Account
       summary: User Create
       description: >
-        Creates a User on your Account. Once created, the User will be
-        able to log in and access portions of your Account. Access is
-        determined by whether or not they are restricted, and what grants they
-        have been given.
+        Creates a User on your Account. Once created, a confirmation message containing
+        password creation and login instructions is sent to the User's email address.
+
+
+        The User's account access is determined by whether or not they are restricted,
+        and what grants they have been given.
       operationId: createUser
       x-linode-cli-action: create
       security: