Link to a Bokeh Github issue.

    Returns 2 part tuple containing list of nodes to insert into the
    document and a list of system messages.  Both are allowed to be
    empty.

def bokeh_commit(name, rawtext, text, lineno, inliner, options=None, content=None):
    ''' Link to a Bokeh Github issue.

    Returns 2 part tuple containing list of nodes to insert into the
    document and a list of system messages.  Both are allowed to be
    empty.

    '''
    app = inliner.document.settings.env.app
    node = _make_gh_link_node(app, rawtext, 'commit', 'commit ', 'commit', text, options)
    return [node], []