Yes, this does look good. However, usually the robots.txt will define a location of a sitemap. Not absolutely needed, but good to know.
Here is an example of one of our client's wordpress sites.
User-agent: *
Disallow: /wp-admin
Disallow: /another-post
Disallow: /dolor-and-the-sit-amet/
Disallow: /hello-world-2-2/
Disallow: /second-page-post/
Disallow: /hello-world-2-3/
Disallow: /tag/
Disallow: /events/
Disallow: /wp-content/
Sitemap: http://backcountrysnow.com/sitemap.xml.gz
