doc: one last composants -> components

doc/manpages.tex

@@ -285,7 +285,7 @@ the GUI.
 \section{The \texttt{why3bench} tool}
 
 The \texttt{why3bench} tool adds a scheduler on top of the \why\
-library. \texttt{why3bench} is designed to compare various composants
+library. \texttt{why3bench} is designed to compare various components
 of automatic proofs: automatic provers, transformations, definitions
 of a theory. For that goal it tries to prove predefined goals using
 each component to compare. \texttt{why3bench} allows to output the