Add <hr> (#1385)

Author: petele

features/draft/html-elements/hr.yml renamed to features/hr.yml

@@ -1,6 +1,5 @@
-draft_date: 2024-06-05
 name: <hr>
-description: The `<hr>` element TODO.
+description: The `<hr>` element represents a thematic break between paragraphs, often shown as a horizontal rule.
 spec: https://html.spec.whatwg.org/multipage/grouping-content.html#the-hr-element
 group: html
 compat_features: