bug #4273 - fix doctrine version in How to Provide Model Classes for several Doctrine Implementations cookbook
minor #4544 bug #4273 - fix doctrine version in How to Provide Model Classes for several Doctrine Implementations cookbook (ternel)

This PR was merged into the 2.3 branch.

Discussion
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bug #4273 - fix doctrine version in How to Provide Model Classes for several Doctrine Implementations cookbook

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3+
| Fixed tickets | #4273

Commits
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6aabece bug #4273 - fix doctrine version in How to Provide Model Classes for several Doctrine Implementations cookbook