bugfix: making a completely valid latex documentation

Although for pdflatex this issue generates just a warning, some other tools (e.g., pandoc) have bigger problems with it

Manual/BioEM_Manual.tex

@@ -817,7 +817,7 @@ With this feature there is an additional output file \texttt{ANG\_PROB} where th
 
 %\end{enumerate}
 
-{%\it Note:}  Features 1) \& 2) are mutually exclusive. 
+%{\it Note:}  Features 1) \& 2) are mutually exclusive. 
 
 
 \section{File Formats}