improve salsa release notes message

fixes #3430

extensions/javascript-migration/src/extension.ts

@@ -7,17 +7,23 @@
 import * as vscode from 'vscode';
 import * as cp from 'child_process';
 
-
 export function activate(context: vscode.ExtensionContext) {
 	const releaseNotesShown = 'javascript.releasenotesshown';
 
 	if (!context.globalState.get(releaseNotesShown)) {
 		// cheating with nls, this is a temporary extenion only, that doesn't need be localized
-		vscode.window.showInformationMessage('The JavaScript infrastructure has changed, please read the change notes.', 'Change Notes').then(selection => {
-			if (selection) {
-				open('http://go.microsoft.com/fwlink/?LinkId=733559');
+		vscode.window.showInformationMessage(
+			'Our JavaScript support has been enhanced, would you like to view the Release Notes?',
+			'No',
+			'Yes'
+		).then(selection => {
+			switch (selection) {
+				case 'Yes':
+					open('http://go.microsoft.com/fwlink/?LinkId=733559');
+				case 'No':
+					context.globalState.update(releaseNotesShown, true);
+					break;
 			}
-			context.globalState.update(releaseNotesShown, true);
 		});
 	}
 }