minor #3592 Fix a typo advanced.rst (fishmandev)
minor #3592 Fix a typo advanced.rst (fishmandev)

This PR was submitted for the 3.x branch but it was merged into the 2.x branch instead.

Discussion
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Fix a typo advanced.rst

Fix a typo

Commits
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cd24fb57 Fix a typo advanced.rst

twigphp/Twig,twigphp/Twig,twigphp/Twig