doc:  PG 13 relnotes, update TOAST item to mention decompression
Reported-by: Andrey M. Borodin
Discussion:
@@ -675,7 +675,7 @@ Author: Tomas Vondra <tomas.vondra@postgresql.org>
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<para>
-Improve retrieving of only the leading bytes of TOAST values (Binguo Bao)
+Improve speed of TOAST decompression and the retrievel of only the leading bytes of TOAST values (Binguo Bao, Andrey Borodin)
</para>
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