neutrinojs URL looks like spam

[anselmbradford]

The neutrinojs URL in https://github.com/cookpete/auto-changelog/blob/master/README.md looks like it has been commandeered by… something…

[ljharb]

Seems https://github.com/neutrinojs/neutrino was archived in February, and they didn't hold on to the website forever (see neutrinojs/webpack-chain#358)

We should just remove the link from the readme.