# Functions
Build fetches a list of changelog entries using the given changelog service, and prints them to stdout.
FetchChangelogEntries fetches a list of all changelog entries using the given changelog service.
FormatChangelogEntries formats a slice of changelog entries, returning a string that can be used to display them.
NewGitHubChangelogService returns a new instance of a GitHubChangelogService.
# Structs
A ChangelogEntry contains the data used to display changelog entries and sort them.
A GitHubChangelogService implements the ChangelogService for public GitHub.
# Interfaces
A ChangelogService implements the methods required to build a changelog.