[devtools] update whatsnew for m76

Bug: 967940
Change-Id: I921dfeadb8780132cef228371395a491c9db264b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1633511
Auto-Submit: Kayce Basques <kayce@google.com>
Commit-Queue: Joel Einbinder <einbinder@chromium.org>
Reviewed-by: Joel Einbinder <einbinder@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664464}

third_party/blink/renderer/devtools/front_end/help/ReleaseNoteText.js

@@ -12,6 +12,29 @@ const commandMenuShortcut = Host.isMac() ? 'Command + Shift + P' : 'Control + Sh
 
 /** @type {!Array<!Help.ReleaseNote>} */
 Help.releaseNoteText = [
+  {
+    version: 18,
+    header: 'Highlights from the Chrome 76 update',
+    highlights: [
+      {
+        title: 'Autocomplete with CSS keyword values',
+        subtitle: 'Typing a keyword value like "bold" in the Styles pane now autocompletes to "font-weight: bold".',
+        link: 'https://developers.google.com/web/updates/2019/05/devtools#values',
+      },
+      {
+        title: 'A new UI for network settings',
+        subtitle:
+            'The "Use large request rows", "Group by frame", "Show overview", and "Capture screenshots" options have moved to the new Network Settings pane.',
+        link: 'https://developers.google.com/web/updates/2019/05/devtools#settings',
+      },
+      {
+        title: 'WebSocket messages in HAR exports',
+        subtitle: 'Network logs downloaded from the Network panel now include WebSocket messages.',
+        link: 'https://developers.google.com/web/updates/2019/05/devtools#websocket',
+      },
+    ],
+    link: 'https://developers.google.com/web/updates/2019/05/devtools',
+  },
   {
     version: 17,
     header: 'Highlights from the Chrome 75 update',