Update docs of logical replication for commit ce0fdbfe.

Forgot to update the logical replication configuration settings page.
After commit ce0fdbfe, table synchronization workers also started using
replication origins to track the progress and the same should be reflected
in docs.

Author: Amit Kapila
Discussion: https://postgr.es/m/CAA4eK1KkbppndxxRKbaT2sXrLkdPwy44F4pjEZ0EDrVjD9MPjQ@mail.gmail.com

doc/src/sgml/logical-replication.sgml

@@ -604,10 +604,10 @@
   <para>
    The subscriber also requires the <varname>max_replication_slots</varname>
    to be set.  In this case it should be set to at least the number of
-   subscriptions that will be added to the subscriber.
-   <varname>max_logical_replication_workers</varname> must be set to at
-   least the number of subscriptions, again plus some reserve for the table
-   synchronization.  Additionally the <varname>max_worker_processes</varname>
+   subscriptions that will be added to the subscriber, plus some reserve for
+   table synchronization.  <varname>max_logical_replication_workers</varname>
+   must be set to at least the number of subscriptions, again plus some reserve
+   for the table synchronization.  Additionally the <varname>max_worker_processes</varname>
    may need to be adjusted to accommodate for replication workers, at least
    (<varname>max_logical_replication_workers</varname>
    + <literal>1</literal>).  Note that some extensions and parallel queries