Updated Installation (markdown)

Installation.md

@@ -216,7 +216,7 @@ updated in the future releases. However, the list
 Finally, you need to set up a database. Switch to `/opt/recodex-core` directory
 (that is **important**) and execute
 ```
-# su -c 'php www/index.php migrations:migrate' recodex
+# su -c './bin/console migrations:migrate' recodex
 ```
 You may see warnings that some migrations did not execute any SQL statements,
 which is all right since there are no data in the DB yet. However, the whole
@@ -257,7 +257,7 @@ from `debug` to `info` for broker and monitor (and do not forget to restart the
 
 It is also recommended that you fill in the initial data into the database:
 ```
-# su -c 'php www/index.php db:fill init' recodex
+# su -c './bin/console db:fill init' recodex
 ```
 
 After executing the fill command the database will contain:
@@ -277,7 +277,7 @@ an alternative.
 Finally, there are several commands that should be executed periodically.
 All commands are executed similarly as db commands we used earlier: 
 ```
-php /opt/recodex-core/www/index.php command:name
+/opt/recodex-core/bin/console command:name
 ```
 
 The important commands are 
@@ -289,7 +289,7 @@ The important commands are
 * `db:cleanup:uploads` will remove old uploaded files
 * `db:cleanup:localized-texts` will remove old texts of groups and exercises
 * `db:cleanup:exercise-configs` will remove old exercise configs
-* `db:cleanup:db:cleanup:exercise-files` will remove unused files (attachments and test files) of deleted exercises/assignments and pipelines 
+* `db:cleanup:exercise-files` will remove unused files (attachments and test files) of deleted exercises/assignments and pipelines 
 * `db:cleanup:pipeline-configs` will remove old pipeline configs
 * `users:remove-inactive` will soft-delete and anonymize users who are deemed
   inactive (i.e., they have not verified their credentials for a period of time