Fixup: punctuation when introducing hk and hke

Author: jensmaurer

source/containers.tex

@@ -2291,8 +2291,8 @@
   \end{itemize}
   where \tcode{r1} and \tcode{r2} are keys of elements in \tcode{a_tran},
 \item \tcode{n} denotes a value of type \tcode{size_type},
-\item \tcode{z} denotes a value of type \tcode{float}, and
-\item \tcode{nh} denotes a non-const rvalue of type \tcode{X::node_type}.
+\item \tcode{z} denotes a value of type \tcode{float},
+\item \tcode{nh} denotes a non-const rvalue of type \tcode{X::node_type}, and
 \item \tcode{hk} and \tcode{hke} denote values of type \tcode{size_t}.
 \end{itemize}