Remove invalid day-count in Discount quote example

Author: gbfredrik

Docs/UserGuide/marketdata.tex

@@ -144,7 +144,7 @@ \subsection{Discount Factor}\label{ss:discount_rate}
 Examples with a Term and with a DiscountDate:
 \begin{itemize}
 \item {DISCOUNT/RATE/EUR/EUR3M/3Y}
-\item {DISCOUNT/RATE/EUR/EUR3M/A365F/12-05-2018}
+\item {DISCOUNT/RATE/EUR/EUR3M/12-05-2018}
 \end{itemize}
 
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