Google XML Sitemap
How to add Google XML sitemap to Google Search Console.
Note: That once linked, there is no need to update, as the XML sitemap has instruction to Google to return on any changes made.
Step 1.
In the admin goto Utility -> Sitemaps


Step 2.
In another browser tab open you Google Search Console and navigate to Indexing -> Sitemaps

Step 3.
Copy the sitemaps/google into the sitemap field, as per the image below. Then click Submit

It will take a couple of days for google to start indexing your website.