Added ???_R and ???_D macros to reference

[SVN r12910]

doc/reference/list_to_tuple.htm

@@ -55,6 +55,10 @@
 
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+<h2><a name="BOOST_PP_LIST_TO_TUPLE_R">#define BOOST_PP_LIST_TO_TUPLE_R</a>(D,L)</h2>
+ <p>Can be used inside <a href="for.htm#BOOST_PP_FOR">BOOST_PP_FOR</a>().</p> 
+<hr>
+
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