how to add meta tag in blogger #011

https://rankmath.com/tools/meta-tag-analyzer/

<!-- Description --> <b:if cond='data:blog.pageType != "error_page"'> <meta expr:content='data:blog.metaDescription' name='description'/> </b:if>
<!-- Title --> <b:if cond='data:blog.pageType == "index"'> <title><data:blog.pageTitle/> - Android Guide.</title> <b:else/> <b:if cond='data:blog.pageType != "error_page"'> <title><data:blog.pageName/> - <data:blog.title/></title> </b:if> </b:if> <b:if cond='data:blog.pageType == "error_page"'> <title>Page Not Found - <data:blog.title/></title> </b:if>