Customise repository url

[jdanil]

Currently, the conventional-changelog dependency uses repository.url in package.json by default to generate the links in the changelog.
According to the npm documentation this url should be able to be used by a VCS program, and should not be a url to a html project page.

We have the need to have different vcs and html urls.
semantic-release allows the repository url to be customised.

Would it be appropriate to add a --repositoryUrl option to corp-semantic-release that can be passed to conventional-changelog?
Happy to contribute if you are happy with this solution.

@leonardoanalista