public function getIndex($version)
    {
        return $this->cache->remember(function() use($version) {
            $path = base_path(config('larecipe.docs.path').'/'.$version.'/index.md');

            if ($this->files->exists($path)) {
                $parsedContent = $this->parse($this->files->get($path));

                return $this->replaceLinks($version, $parsedContent);
            }

            return null;
        }, 'larecipe.docs.'.$version.'.index');
    }