Add type attribute to <ol> and specify valid values

src/vs/languages/html/common/htmlTags.ts

@@ -45,7 +45,7 @@ export function getHTML5TagProvider(): IHTMLTagProvider {
 		hr: none,
 		pre: none,
 		blockquote: ['cite'],
-		ol: ['reversed:v', 'start'],
+		ol: ['reversed:v', 'start', 'type:lt'],
 		ul: none,
 		li: ['value'],
 		dl: none,
@@ -160,6 +160,7 @@ export function getHTML5TagProvider(): IHTMLTagProvider {
 		o: ['on', 'off'],
 		t: ['hidden', 'text', 'search', 'tel', 'url', 'email', 'password', 'datetime', 'date', 'month', 'week', 'time', 'datetime-local', 'number', 'range', 'color', 'checkbox', 'radio', 'file', 'submit', 'image', 'reset', 'button'],
 		bt: ['button', 'submit', 'reset'],
+		lt: ['1', 'a', 'A', 'i', 'I'],
 		xo: ['anonymous', 'use-credentials'],
 		sb: ['allow-forms', 'allow-modals', 'allow-pointer-lock', 'allow-popups', 'allow-popups-to-escape-sandbox', 'allow-same-origin', 'allow-scripts', 'allow-top-navigation'],
 		tristate: ['true', 'false', 'mixed', 'undefined'],