mark errata properly

articles/ui/ui.tex

@@ -96,8 +96,6 @@ Marcello Stanisci}
 \maketitle
 
 
-
-
 \begin{abstract}
 GNU Taler is a new electronic online payment system which provides
 privacy for customers and accountability for merchants. It uses an
@@ -124,6 +122,8 @@ as cleanly separating security-critical functions of the payment
 system from the rest of the Web service.
 \end{abstract}
 
+{\bf Errata:} Corrected statement about BOLT (see footnote).
+
 \section{Introduction}
 
 The Internet needs a secure, usable and privacy-preserving