Add blank lines around headers in pgbackup.md

docs/apps/pgbackup.md

@@ -15,6 +15,7 @@ Set your postgres host, username and password in the .env file along with a comm
 By default, backups run daily.  Change PGBACKUP_SCHEDULE to any valid [cron schedule](http://godoc.org/github.com/robfig/cron#hdr-Predefined_schedules) to modify the default.
 
 ### Recommended docker-compose overrides
+
 For extra security, it is recommended to limit permissions on the backup folder to a priviledged user.  Modify docker-compose.override.yml as below.
 
 If you are using postgres docker container, add a dependency to the container
@@ -27,9 +28,11 @@ If you are using postgres docker container, add a dependency to the container
 ```
 
 ## Manually trigger a backup
+
 `docker exec -it pgbackup ./backup.sh`
 
 ## Restore from latest backup
+
 If the database already exists, drop it.
 Create a database <db_name>