Adding a Language Attribute to the HTML Tag

Adding a language attribute to the html tag as one of the following … 
<!DOCTYPE HTML xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" xml:lang="en" lang="en”> or as … 
<!DOCTYPE HTML 
 xmlns="http://www.w3.org/1999/xhtml <http://www.w3.org/1999/xhtml>" xml:lang="en" lang="en”> 
keeps giving me the warning … 
Consider adding a lang attribute to the html start tag to declare the language of this document. 
From line 1, column 16; to line 2, column 6 <https://validator.w3.org/nu/#l2c6>
TYPE HTML>↩<HEAD>↩ 
What is wrong? 
Sincerely, Thank you. 
M...

Received on Thursday, 7 March 2019 07:20:52 UTC