Update set-up-sso-saml-2.0.md (#4067)

Add NameID as a user attribute for OneLogin

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website/docs/docs/cloud/manage-access/set-up-sso-saml-2.0.md

@@ -380,6 +380,7 @@ We recommend using the following values:
 
 | name | name format | value |
 | ---- | ----------- | ----- |
+| NameID | Unspecified | Email |
 | email | Unspecified | Email |
 | first_name | Unspecified | First Name |
 | last_name | Unspecified | Last Name |