Correct file path

Author: Akshay Gadhave

guides/common/modules/proc_upgrading-postgresql-on-the-external-database-system.adoc

@@ -10,7 +10,7 @@ Upgrade the external database to PostgreSQL 13
 endif::[]
 
 .Procedure
-. Back up the `var/lib/pgsql/data/postgresql.conf` and `/var/lib/pgsql/data/pg_hba.conf` files.
+. Back up the `/var/lib/pgsql/data/postgresql.conf` and `/var/lib/pgsql/data/pg_hba.conf` files.
 . Follow the instructions in {RHELDocsBaseURL}8/html/deploying_different_types_of_servers/using-databases#fast-upgrade-using-the-pg_upgrade-tool_migrating-to-a-rhel-8-version-of-postgresql[Fast upgrade using the pg_upgrade utility] in _{RHEL}{nbsp}8 Deploying different types of servers_ to upgrade the external database.
 +
 Instead of enabling the `postgresql:13` module, switch to the module:
@@ -19,7 +19,7 @@ Instead of enabling the `postgresql:13` module, switch to the module:
 ----
 # yum module switch-to postgresql:13
 ----
-. Restore the `var/lib/pgsql/data/postgresql.conf` and `/var/lib/pgsql/data/pg_hba.conf` files from the backup.
+. Restore the `/var/lib/pgsql/data/postgresql.conf` and `/var/lib/pgsql/data/pg_hba.conf` files from the backup.
 ifdef::katello,satellite,orcharhino[]
 . Correct the permissions on the `evr` extension on the external database:
 +