Update set-up-sso-saml-2.0.md (#4076)

Add NameID as an attribute for generic SAML 2.0 setups

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

@@ -59,6 +59,7 @@ Additionally, you may configure the IdP attributes passed from your identity pro
 | email | Unspecified | user.email | The user's email address |
 | first_name | Unspecified | user.first_name | The user's first name |
 | last_name | Unspecified | user.last_name | The user's last name |
+| NameID (if applicable) | Unspecified | user.email | The user's email address |
 
 dbt Cloud's [role-based access control](/docs/cloud/manage-access/about-user-access#role-based-access-control) relies
 on group mappings from the IdP to assign dbt Cloud users to dbt Cloud groups. To