private function addSeoSection(ArrayNodeDefinition $node)
    {
        /** @noinspection PhpUndefinedMethodInspection */
        $node
            ->children()
                ->arrayNode('seo')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->booleanNode('no_follow')->defaultFalse()->end()
                        ->booleanNode('no_index')->defaultFalse()->end()
                        ->scalarNode('title_append')->defaultValue('')->end()
                    ->end()
                ->end()
            ->end();
    }
private function addSeoSection(ArrayNodeDefinition $node)
    {
        /** @noinspection PhpUndefinedMethodInspection */
        $node
            ->children()
                ->arrayNode('seo')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->booleanNode('no_follow')->defaultFalse()->end()
                        ->booleanNode('no_index')->defaultFalse()->end()
                        ->scalarNode('title_append')->defaultValue('')->end()
                    ->end()
                ->end()
            ->end();
    }
private function addSeoSection ( ArrayNodeDefinition $ node ) { /** @noinspection PhpUndefinedMethodInspection */ $ node -> children ( ) -> arrayNode ( 'seo' ) -> addDefaultsIfNotSet ( ) -> children ( ) -> booleanNode ( 'no_follow' ) -> defaultFalse ( ) -> end ( ) -> booleanNode ( 'no_index' ) -> defaultFalse ( ) -> end ( ) -> scalarNode ( 'title_append' ) -> defaultValue ( '' ) -> end ( ) -> end ( ) -> end ( ) -> end ( ) ; }
Adds `seo` section.

@param ArrayNodeDefinition $node
Adds seo section .