Fix a very minor (but annoying when looking for things!) markup nit.
diff --git a/Doc/ref/ref5.tex b/Doc/ref/ref5.tex
index d66996a..37d1f2d 100644
--- a/Doc/ref/ref5.tex
+++ b/Doc/ref/ref5.tex
@@ -16,6 +16,7 @@
 are the same as for \code{othername}.
 \index{syntax}
 
+
 \section{Arithmetic conversions\label{conversions}}
 \indexii{arithmetic}{conversion}
 
@@ -54,6 +55,7 @@
 enclosure: parenth_form|list_display|dict_display|string_conversion
 \end{verbatim}
 
+
 \subsection{Identifiers (Names)\label{atom-identifiers}}
 \index{name}
 \index{identifier}
@@ -99,6 +101,7 @@
 implementation defined truncation may happen.  If the class name
 consists only of underscores, no transformation is done.
 
+
 \subsection{Literals\label{atom-literals}}
 \index{literal}
 
@@ -122,6 +125,7 @@
 \indexiii{immutable}{data}{type}
 \indexii{immutable}{object}
 
+
 \subsection{Parenthesized forms\label{parenthesized}}
 \index{parenthesized form}
 
@@ -150,6 +154,7 @@
 \index{comma}
 \indexii{tuple}{display}
 
+
 \subsection{List displays\label{lists}}
 \indexii{list}{display}
 \indexii{list}{comprehensions}
@@ -181,6 +186,7 @@
 \obindex{list}
 \indexii{empty}{list}
 
+
 \subsection{Dictionary displays\label{dict}}
 \indexii{dictionary}{display}
 
@@ -210,6 +216,7 @@
 stored for a given key value prevails.
 \indexii{immutable}{object}
 
+
 \subsection{String conversions\label{string-conversions}}
 \indexii{string}{conversion}
 \indexii{reverse}{quotes}
@@ -249,6 +256,7 @@
 \bifuncindex{repr}
 \bifuncindex{str}
 
+
 \section{Primaries\label{primaries}}
 \index{primary}
 
@@ -259,6 +267,7 @@
 primary:        atom | attributeref | subscription | slicing | call
 \end{verbatim}
 
+
 \subsection{Attribute references\label{attribute-references}}
 \indexii{attribute}{reference}
 
@@ -279,6 +288,7 @@
 \obindex{module}
 \obindex{list}
 
+
 \subsection{Subscriptions\label{subscriptions}}
 \index{subscription}
 
@@ -316,6 +326,7 @@
 \index{character}
 \indexii{string}{item}
 
+
 \subsection{Slicings\label{slicings}}
 \index{slicing}
 \index{slice}
@@ -382,6 +393,7 @@
 \withsubitem{(slice object attribute)}{\ttindex{start}
   \ttindex{stop}\ttindex{step}}
 
+
 \subsection{Calls\label{calls}}
 \index{call}
 
@@ -556,6 +568,7 @@
 a \exception{TypeError} exception is raised.
 \exindex{TypeError}
 
+
 \section{Binary arithmetic operations\label{binary}}
 \indexiii{binary}{arithmetic}{operation}
 
@@ -626,6 +639,7 @@
 type.
 \index{subtraction}
 
+
 \section{Shifting operations\label{shifting}}
 \indexii{shifting}{operation}
 
@@ -650,6 +664,7 @@
 exception.
 \exindex{ValueError}
 
+
 \section{Binary bit-wise operations\label{bitwise}}
 \indexiii{binary}{bit-wise}{operation}
 
@@ -678,6 +693,7 @@
 \indexii{bit-wise}{or}
 \indexii{inclusive}{or}
 
+
 \section{Comparisons\label{comparisons}}
 \index{comparison}
 
@@ -808,6 +824,7 @@
 \opindex{is not}
 \indexii{identity}{test}
 
+
 \section{Boolean operations\label{Booleans}}
 \indexii{Boolean}{operation}