Updated first code-block:: bash

The command for executing an console command was wrong. The php command was missing. It will help further readers.
minor #4441 Updated first code-block:: bash (Nitaco)

This PR was submitted for the 2.5 branch but it was merged into the 2.3 branch instead (closes #4441).

Discussion
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Updated first code-block:: bash

The command for executing an console command was wrong. The php command was missing. It will help further readers.

Commits
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9f7fda4 Updated first code-block:: bash