public function enqueueMarkdownItLibs()
    {
        if (($data = $this->didEnqueueLibs(__METHOD__))) {
            return $data; // Did this already.
        } // We only need to enqueue once.

        $data = [
            'scripts' => [
                'markdown-it' => [
                    'version' => '8.2.2',
                    'url'     => '//cdnjs.cloudflare.com/ajax/libs/markdown-it/%1$s/markdown-it.min.js',
                ],
                'markdown-it-attrs' => [
                    'version' => '0.8.0',
                    'deps'    => ['markdown-it'],
                    'url'     => 'https://cdn.rawgit.com/arve0/markdown-it-attrs/v%1$s/markdown-it-attrs.browser.js',
                ],
                'markdown-it-deflist' => [
                    'version' => '2.0.1',
                    'deps'    => ['markdown-it'],
                    'url'     => '//cdn.rawgit.com/markdown-it/markdown-it-deflist/%1$s/dist/markdown-it-deflist.min.js',
                ],
                'markdown-it-abbr' => [
                    'version' => '1.0.4',
                    'deps'    => ['markdown-it'],
                    'url'     => '//cdn.rawgit.com/markdown-it/markdown-it-abbr/%1$s/dist/markdown-it-abbr.min.js',
                ],
                'markdown-it-footnote' => [
                    'version' => '3.0.1',
                    'deps'    => ['markdown-it'],
                    'url'     => '//cdn.rawgit.com/markdown-it/markdown-it-footnote/%1$s/dist/markdown-it-footnote.min.js',
                ],
            ],
        ];
        return $this->enqueueLibs(__METHOD__, $data);
    }