minor #3078 Add Blackfire as a sponsor (fabpot)
minor #3078 Add Blackfire as a sponsor (fabpot)

This PR was merged into the 1.x branch.

Discussion
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Add Blackfire as a sponsor

Commits
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8c7a0e9a added Blackfire as a sponsor

nicolas-grekas/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig,nicolas-grekas/Twig,twigphp/Twig,twigphp/Twig,twigphp/Twig