DevTools: polish what's new - add date to title

third_party/WebKit/Source/devtools/front_end/help/ReleaseNoteText.js

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // NOTE: need to be careful about adding release notes early otherwise it'll
 // be shown in Canary (e.g. make sure the release notes are accurate).
 // https://github.com/ChromeDevTools/devtools-frontend/wiki/Release-Notes
 
 /** @type {!Array<!Help.ReleaseNote>} */
 Help.releaseNoteText = [{
   version: 1,
+  date: 'March 2017',
   highlights: [
     {
       title: 'New Performance and Memory panels',
       subtitle: 'Head to Performance for JavaScript profiling',
       link: 'https://developers.google.com/web/updates/2017/03/devtools-release-notes#performance-panel',
     },
     {
       title: 'Editable cookies',
       subtitle: 'You can edit any existing cookies and create new ones in the Application panel',
       link: 'https://developers.google.com/web/updates/2017/03/devtools-release-notes#cookies',
     },
     {
       title: 'Console filtering & settings',
       subtitle: 'Use the text filter or click the Console settings icon to touch up your preferences',
       link: 'https://developers.google.com/web/updates/2017/03/devtools-release-notes#console',
     },
     {
       title: 'Debugger catches out-of-memory errors',
       subtitle: 'See the stack or grab a heap snapshot to see why the app may crash',
       link: 'https://developers.google.com/web/updates/2017/03/devtools-release-notes#out-of-memory-breakpoints',
     },
   ],
   link: 'https://developers.google.com/web/updates/2017/03/devtools-release-notes',
 }];