setting up SEO for my website - the website is for advertising administration services to businesses. I have developed my website using WordPress and have included the plugin YOAST but having difficulty setting up the sitemap because it says it is HTML.
1) I don't even know what a sitemap is
2) I don't even know if I need a sitemap
3) I just want to ensure I can be easily found when typing in either my website name or administration support, virtual administration support, virtual administration etc.....
4) If I'm shown how and what to look for I can and am happy to add content and articles to my site with the most appropriate keywords - I just need some guidance please.
5) If my Premium subscription to YOAST is of no use, I'd rather know now than find out later so I can cancel it.
My website is [url removed, login to view]