support for multiple transaction managers with @Transactional / <tx:annotation-driven> needs to be documented [SPR-6205]

[spring-projects-issues]

Brian James opened SPR-6205 and commented

The fix for allowing multiple transaction managers to be used with annotations (Reference #8635) needs to be documented.
There is no mention of this new feature in the 3.0.0.RC1 documentation.

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Affects: 3.0 RC1

Referenced from: commits 1ddbfe0

[spring-projects-issues]

Luke Taylor commented

I've added a couple of sub-sections, essentially taken from Juergen's comment explaining the changes he made for #8635.