docs: Add note about v12 breaking changes

Author: TimothyJones

README.md

@@ -2,7 +2,7 @@
 
 > **`commit-and-tag-version` is a fork of `standard-version`**. Because of maintainer availability, `standard-version` was [deprecated on 15th May 2022](https://github.com/conventional-changelog/standard-version/pull/907). The previous maintainer recommends [release-please](https://github.com/googleapis/release-please) as an alternative for those who are using GitHub actions. This fork exists for those who can't switch to `release-please`, or who would like to continue using `standard-version`.
 
-> **`Can I simply swap the library to migrate?`** To migrate, you can drop in `commit-and-tag-version` in place of `standard-version`. There are no changes in 9.5.0, other than to add the package.json config key `commit-and-tag-version` (the previous configuration key `standard-version` will still work). 10.x drops support for deprecated node versions, and 11.x is a formatting change if you're relying on the exact markdown format in the changelog.
+> **`Can I simply swap the library to migrate?`** To migrate, you can drop in `commit-and-tag-version` in place of `standard-version`. There are no changes in 9.5.0, other than to add the package.json config key `commit-and-tag-version` (the previous configuration key `standard-version` will still work). 10.x drops support for deprecated node versions, 11.x is a formatting change if you're relying on the exact markdown format in the changelog, and 12.x drops support for node 14/16.
 
 > **`Why was it renamed commit-and-tag-version?`**. I didn't want to scope the package or name it `standard-version-fork`, and it was a good opportunity to make the purpose of the tool clearer. I also wanted to distinguish it from the other tool in this organisation, [`absolute-version`](https://github.com/absolute-version/absolute-version-js), which just prints version information for pre-releases.