Adding filename parameter (#23)

* Typo

* Remove extension

* Typos

Author: Nyholm

README.md

@@ -148,7 +148,7 @@ $this->container->get('backup_manager')->makeRestore()->run('s3', 'test/backup.s
 ```
 
 ```bash
-php bin/console backup-manager:backup development s3 test/backup.sql.gz -c gzip 
+php bin/console backup-manager:restore development s3 test/backup.sql.gz -c gzip 
 ```
 
 > This package does not allow you to backup from one database type and restore to another. A MySQL dump is not compatible with PostgreSQL.
@@ -159,4 +159,4 @@ Requirements
 - PHP 5.5
 - MySQL support requires `mysqldump` and `mysql` command-line binaries
 - PostgreSQL support requires `pg_dump` and `psql` command-line binaries
-- Gzip support requires `gzip` and `gunzip` command-line binaries
+- Gzip support requires `gzip` and `gunzip` command-line binaries