You never know how people will use a tool once it is out ‘in the wild’. I wrote my Generate Release Notes VSTS extension to generate markdown files, but people have attempted to use it in other ways.
I realised, via an issue raised on Github, that it can also be used, without any code changes, to generate other formats such as HTML. The only change required is to provide an HTML based template as opposed to markdown one.
I have added suitable samples to the wiki and repo