first commit.

functions.php

@@ -0,0 +1,39 @@
+<?php
+
+// enable automatic update
+add_filter( 'auto_update_plugin', '__return_true' );
+add_filter( 'auto_update_theme', '__return_true' );
+
+
+add_action('wp_enqueue_scripts', 'theme_enqueue_styles');
+function theme_enqueue_styles() {
+    wp_enqueue_style('parent-style', get_template_directory_uri().'/style.css' );
+    wp_enqueue_style('child-style', get_stylesheet_directory_uri().'/style.css', ['parent-style']);
+}
+
+// enable archive page.
+add_filter( 'register_post_type_args', 'post_has_archive', 10, 2 );
+function post_has_archive($args, $post_type) {
+    if ('post' == $post_type) {
+        $args['rewrite'] = true;
+	$args['has_archive'] = 'news';
+    }
+
+    return $args;
+}
+
+// add google analytics
+add_action('wp_head', 'hook_google_analytics');
+function hook_google_analytics() {
+    echo <<<EOF
+
+<!-- Google Tag Manager -->
+<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-K6BD5N9');</script>
+<!-- End Google Tag Manager -->
+
+EOF;
+}