Update chapters/statements.tex

Use proposed ", where the expressions" instead of " - that"

Co-authored-by: Henrik Tidefelt <henrikt@wolfram.com>

chapters/statements.tex

@@ -217,7 +217,7 @@ \subsubsection{Implicit Iteration Ranges}\doublelabel{implicit-iteration-ranges}
 
 An iterator \lstinline!IDENT in range-expr! without the \lstinline!in range-expr! requires that
 the \lstinline!IDENT! appears as the subscript of one or several subscripted
-expressions - that are not part of an array in a component of an expandable connector.
+expressions, where the expressions are not part of an array in a component of an expandable connector.
 The dimension size of the array expression in the indexed
 position is used to deduce the \lstinline!range-expr! as
 \lstinline!1:size(array-expression,indexpos)! if the indices are a subtype of