fix readme

Author: ruvenzx

README.md

@@ -564,9 +564,9 @@ descope_client.mgmt.tenant.load_settings(id="my-custom-id")
 tenant_settings = {
     session_settings_enabled = True,
     self_provisioning_domains = ["ackme.com"],
-    
+
 }
-descope_client.mgmt.tenant.update_settings(id="my-custom-id", tenant_settings=tenant_settings)
+descope_client.mgmt.tenant.update_settings(id="my-custom-id", self_provisioning_domain=["domain.com"], session_settings_enabled=True, refresh_token_expiration=1, refresh_token_expiration_unit="hours")
 
 
 # Tenant deletion cannot be undone. Use carefully.