[Docs] Document the similarity between html-has-lang and lang

denis-sokolov · ljharb · commit df3c7ad99dda · 2021-03-02T09:45:41.000+02:00
diff --git a/docs/rules/html-has-lang.md b/docs/rules/html-has-lang.md
@@ -1,6 +1,6 @@
 # html-has-lang
 
-<html> elements must have the lang prop.
+<html> elements must have the lang prop. This rule is largely superseded by the [`lang` rule](https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/blob/master/docs/rules/lang.md).
 
 ## Rule details
 
