Make the URL people should start at for this version of coverage.py.

def _make_url(major, minor, micro, releaselevel, serial):
    """Make the URL people should start at for this version of coverage.py."""
    url = "https://django-pagination-bootstrap.readthedocs.io"
    if releaselevel != 'final':
        # For pre-releases, use a version-specific URL.
        url += "/en/" + _make_version(major, minor, micro, releaselevel, serial)
    return url