docs fix

apps/basic/tests/README.md

@@ -4,10 +4,12 @@ These tests are developed with [Codeception PHP Testing Framework](http://codece
 After creating the basic application, follow these steps to prepare for the tests:
 
 1. To install `Codeception` and its dependencies through composer, run commands:
+
    ```
    php composer.phar require "codeception/codeception": "*"
    php composer.phar require "codeception/specify": "*"
    ```
+
 2. In the file `_bootstrap.php`, modify the definition of the constant `TEST_ENTRY_URL` so
    that it points to the correct entry script URL.
 3. Go to the application base directory and build the test suites: