fixed a minor typo

docs/parameters.tex

@@ -247,7 +247,7 @@ hand). The default reference point is \texttt{palm}.
 \begin{lstlisting}[language=yaml]
 Locate:
   place: # from locations, described below.
-  refPoint: from hand_position in locations.
+  refPoint: # from hand_position in locations.
   dist: Int # 0: contact, 1: close, 2: far, 3: very far
 \end{lstlisting}