Fixed some typos

                   
|Q            |A  |
|---          |---|
|Bug Fix?     |n  |
|New Feature? |n  |
|BC Breaks?   |n  |
|Deprecations?|n  |
|Tests Pass?  |n  |
|Fixed Tickets| #9  |
|License      |MIT|
|Doc PR       |   |
                   


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the place of the ``;`` is a matter of coding standard (and we don't have a rule for it in Symfony btw).
On the other hand, the leading ``\`` is needed to respect the phpdoc rules.