[PATCH] wwwdocs: Document more libstdc++ additions for GCC 13

[Patrick Palka via Gcc-patches]

Does this look OK for wwwdocs?

---
 htdocs/gcc-13/changes.html | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/htdocs/gcc-13/changes.html b/htdocs/gcc-13/changes.html
index 7b64b2e5..191d0a4d 100644
--- a/htdocs/gcc-13/changes.html
+++ b/htdocs/gcc-13/changes.html
@@ -370,7 +370,17 @@ You may also want to check out our
       <code>views::pairwise</code>, <code>views::slide</code>,
       <code>views::chunk</code>, <code>views::chunk_by</code>,
       <code>views::repeat</code>, <code>views::chunk_by</code>,
-      <code>views::cartesian_product</code>, <code>views::as_rvalue</code>.
+      <code>views::cartesian_product</code>, <code>views::as_rvalue</code>,
+      <code>views::enumerate</code>, <code>views::as_const</code>.
+    </li>
+    <li>Additions to the <code>&lt;algorithm&gt;</code> header:
+      <code>ranges::contains</code>, <code>ranges::contains_subrange</code>,
+      <code>ranges::iota</code>, <code>ranges::find_last</code>,
+      <code>ranges::find_last_if</code>, <code>ranges::find_last_if_not</code>,
+      <code>ranges::fold_left</code>, <code>ranges::fold_left_first</code>,
+      <code>ranges::fold_right</code>, <code>ranges::fold_right_last</code>,
+      <code>ranges::fold_left_with_iter</code>
+      <code>ranges::fold_left_first_with_iter</code>.
     </li>
     <li>Monadic operations for <code>std::expected</code>.</li>
     <li>Constexpr <code>std::bitset</code>, <code>std::to_chars</code>
-- 
2.40.1.423.g2807bd2c10