Lowercase the last reference to two factor that is capital case.

settings/src/components/totp.js

@@ -116,7 +116,7 @@ function Setup( { setSuccess } ) {
 	return (
 		<div className="wporg-2fa__totp_setup-container">
 			<p className="wporg-2fa__screen-intro">
-				Two-Factor Authentication adds an extra layer of security to your account. Use a
+				Two-factor authentication adds an extra layer of security to your account. Use a
 				phone app like{ ' ' }
 				<a
 					href="https://support.google.com/accounts/answer/1066447"