Add italic toggle button

js/main-1.js

@@ -123,3 +123,12 @@ document.addEventListener('DOMContentLoaded', function() {
 	document.body.dispatchEvent(new Event('doCreate'));
 })
 
+document.onkeyup = function(e) {
+	if (document.activeElement === document.getElementById('text-editor')) {
+		if (e.ctrlKey && e.which == 73) {
+			toggleTextTag('i');
+
+			e.preventDefault();
+		}
+	}
+}