doc: Fix typos

From: Thom Brown <thom@linux.com>

doc/src/sgml/ref/create_subscription.sgml

@@ -142,7 +142,7 @@ CREATE SUBSCRIPTION <replaceable class="PARAMETER">subscription_name</replaceabl
 
   <para>
    Create a subscription to a remote server that replicates tables in
-   the publications <literal>mypubclication</literal> and
+   the publications <literal>mypublication</literal> and
    <literal>insert_only</literal> and starts replicating immediately on
    commit:
 <programlisting>

doc/src/sgml/ref/create_table.sgml

@@ -1539,7 +1539,7 @@ CREATE TABLE measurement_year_month (
 CREATE TABLE cities (
     city_id      bigserial not null,
     name         text not null,
-    population   bigint,
+    population   bigint
 ) PARTITION BY LIST (left(lower(name), 1));
 </programlisting></para>