[wp/doc] Apply suggestion in Overflow tactic

src/plugins/wp/doc/manual/wp_plugin.tex

@@ -519,7 +519,7 @@ tactic to select the direction of rewriting.
 \paragraph{Overflow} Integer Conversions \\
 This tactic split machine integer conversions into three cases: value in integer
 range, lower than range and upper than range. The tactic applies on expression
-with pattern $\mathtt{to\_iota(e)}$ where \texttt{iota} is a machine-integer
+with pattern $\mathtt{to\_iota(e)}$ where \texttt{iota} is a machine-integer type
 name, \emph{eg.} \texttt{to\_uint32}.
 
 \[\TACTIC{\Delta\models G}{%