diff --git a/content/_index.md b/content/_index.md
index 6bc6db1..f52dca8 100644
--- a/content/_index.md
+++ b/content/_index.md
@@ -5173,6 +5173,40 @@ If the type does not contain a `Cell` for `T`, these are often combined with one
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+
+
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+
+
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+ Cow<'a, T>
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+ Tag
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+ T
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+
+ or
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+ Tag
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+ ptr2/4/8
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+
+
+
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+ |
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+ T
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+
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+ Holds read-only reference to
some T, or owns it entirely.
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+
+
---