DOC: typo fix from mmts branch

Author: Liudmila Mantrova

doc/src/sgml/libpq.sgml

@@ -978,7 +978,7 @@ postgresql://%2Fvar%2Flib%2Fpostgresql/dbname
        </para>
        <para>
         If the value is <literal>random</literal>, the host to connect to
-        will be randomly picked from the list. It allows load balacing between
+        will be randomly picked from the list. It allows load balancing between
         several cluster nodes. However, PostgreSQL doesn't currently support
         multimaster clusters. So, without the use of third-party products,
         only read-only connections can take advantage from
@@ -7311,7 +7311,7 @@ user=admin
   </para>
   <para>
   If more than one <literal>host</literal> option is present in the same
-  section of the service file, it is interpeted as alternate servers for
+  section of the service file, it is interpreted as alternate servers for
   failover or load-balancing. See  <xref linkend="libpq-connect-host">
   option in the connection string.
   </para>