Обсуждение: doc pg_describe_object description add a url link to pg_depend catalog.

Hi.
made some changes in the pg_describe_object function description section.

add a link to pg_depend.

-        <structname>pg_depend</structname> catalog. This function returns
+        <link linkend="catalog-pg-depend"><structname>pg_depend</structname></link>
catalog. This function returns