minor #1089 Update README.md (VolCh)
minor #1089 Update README.md (VolCh)

This PR was merged into the 3.3 branch.

Discussion
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Update README.md

Bump version to 3.3 & add WebServerBundle

Commits
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1fe933b Update README.md

Tobion/symfony-standard,simonjcarr/symfony_rest,debruyne0/symfony,simonjcarr/symfony_rest,Tobion/symfony-standard,stof/symfony-standard,symfony/symfony-standard,symfony/symfony-standard,kmelia/fresh-symfony,stof/symfony-standard,kmelia/fresh-symfony,kmelia/fresh-symfony,debruyne0/symfony