I would appreciate someone helping me with how to add meta name "keywords" and "description" to my code. Someone has suggested that there may be an option in Yoast SEO plugin to do this. I have Yoast SEO for WP installed in all my websites. haven't found where to add the keywords and desctiption for my websites in Yoast SEO plugin as yet.
I know how to do this for individual posts but not in the main area of the source code.
I use Twenty Ten and twenty Eleven themes.