[queue.syn] Show formatter specializations in the synopsis

source/containers.tex

@@ -13682,6 +13682,10 @@
   template<class T, class Container, class Alloc>
     struct uses_allocator<queue<T, Container>, Alloc>;
 
+  // \ref{container.adaptors.format}, formatter specialization for \tcode{queue}
+  template<class charT, class T, @\libconcept{formattable}@<charT> Container>
+    struct formatter<queue<T, Container>, charT>;
+
   // \ref{priority.queue}, class template \tcode{priority_queue}
   template<class T, class Container = vector<T>,
            class Compare = less<typename Container::value_type>>
@@ -13692,6 +13696,10 @@
               priority_queue<T, Container, Compare>& y) noexcept(noexcept(x.swap(y)));
   template<class T, class Container, class Compare, class Alloc>
     struct uses_allocator<priority_queue<T, Container, Compare>, Alloc>;
+
+  // \ref{container.adaptors.format}, formatter specialization for \tcode{priority_queue}
+  template<class charT, class T, @\libconcept{formattable}@<charT> Container, class Compare>
+    struct formatter<priority_queue<T, Container, Compare>, charT>;
 }
 \end{codeblock}