added some comments

Fin Reinhard

22.27.2019 910bf7b1c1e58c1b8dbe2ae7aeb362af5788a932

 borgbutler-webapp/src/components/views/archives/FileListPanel.jsx

@@ -40,6 +40,7 @@
    }

    handleURLChange = location => {
        // Replacing matched URL(archiveId, repoId) and removing trailing slashes
        this.changeCurrentDirectory(location.pathname.replace(this.props.match.url, '').replace(/^\/|\/$/g, ''));
    };