Add Hreflang Language Tag to Blogspot Blog

The language tag tells Google and other search engines about the language of your blog . Google's webmaster suggests that you should add a language tag to your blog so that the search engines can use your blog's hreflang tag to give search results to users searching in the language you specify.

Here's how you can add a hreflang tag to your blogspot to specify the language of your blog to Google