Update README.md

[andreybolonin]

According to #2821

[mbabker]

I'm honestly half tempted to suggest to just close this unless you're willing to rebuild the table entirely (or just wipe out the table). The heading "Compatible Doctrine ORM & Common Library" implies compatibility with doctrine/orm and doctrine/common, which don't have the same versioning scheme, and does nothing to note compatibility with doctrine/mongodb-odm or other required Doctrine libraries (like the DBAL or Persistence packages which are more relevant here than doctrine/common).

Personally, I think I'd just update the README to note the supported versions as of now and not try to keep a matrix for what older versions did or did not support (a lot of that can be pulled out of the composer.json file for folks who really need it), so instead of a table I'd use this list:

• DBAL: ^3.2
• ORM: ^2.14 or ^3.0
• MongoDB ODM: ^2.3

(And yes, the DBAL callout is important because of #2502 which relates to DBAL features and not the ORM)

[franmomu]

thanks @andreybolonin, I've updated #2821 with @mbabker's suggestion. I don't think the older versions are useful there.