distributed `CHANGELOG` is useless

[targos]

For example, download and extract https://nodejs.org/download/release/latest-v15.x/node-v15.13.0-darwin-x64.tar.xz

The CHANGELOG file in there is useless because it doesn't contain the v15.x changelog. It is a copy of the root CHANGELOG that only has relative links to files that don't exist in the distribution.

[richardlau]

FWIW this is how CHANGELOG.md ends up in the tar balls:

node/Makefile

Line 1130 in 3ef9562

cp CHANGELOG.md $(BINARYNAME)

[jasnell]

The root changelog could definitely be updated with the full links.

[targos]

I think it would be better to include the changelog file that corresponds de the release line

[richardlau]

Pull request: #38033