adding dialog element

features/dialog-element.md

@@ -0,0 +1,14 @@
+---
+title: Dialog element
+category: apps, html
+bugzilla: 840640
+firefox_status: in-development
+mdn_url: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/dialog
+spec_url: https://html.spec.whatwg.org/multipage/interactive-elements.html#the-dialog-element
+spec_repo: https://github.com/whatwg/html
+chrome_ref: 5770237022568448
+ie_ref: dialogelementformodals
+caniuse_ref: dialog
+---
+
+Provides semantics for marking up modal dialogs, along with access to useful related functionality.