Please add one more ALTER SYSTEM command example

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Page: https://www.postgresql.org/docs/11/sql-altersystem.html
Description:

Hi,

ALTER SYSTEM can be used to set shared_preload_libraries with multiple
values in the following way.
postgres=# ALTER SYSTEM SET shared_preload_libraries = "pg_stat_statements",
"$libdir/plugin_debugger" ;
ALTER SYSTEM
postgres=# 

But this useful information is not mentioned in the documentation page.

Is it possible to include one more example about this usage?

Thanks.