symfony/symfony-docs — pull request #2539 by ajgarlag (2013-04-22 19:02:08+00:00)
Title: Adds documentation for the new ISSN validator

| Q | A
| ------------- | ---
| Doc fix? | no
| New docs? | yes https://github.com/symfony/symfony/pull/7756
| Applies to | 2.3+
| Fixed tickets |

Reference document for the new ISSN validator. Please, review it as my English is not very good.