diff --git a/README.md b/README.md
index 34aad14..b755d93 100644
--- a/README.md
+++ b/README.md
@@ -22,8 +22,8 @@ Click a folder from the list above to find out more about a particular demo, or
 <!-- 
 keep DevTools table sync'd:
 https://github.com/MicrosoftEdge/Demos#readme
-https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/sample-code/sample-code#sample-code-for-devtools
-last sync'd Feb. 2, 2023
+https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/sample-code/sample-code#list-of-devtools-samples
+last sync'd April 16, 2024
 -->
 
 | Demo name | Description | Repo directory | Live demo page |
@@ -40,19 +40,19 @@ last sync'd Feb. 2, 2023
 | CSS Examples | Used for [Get started viewing and changing CSS](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/css/). | [/devtools-css-get-started/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-css-get-started) | [CSS Examples](https://microsoftedge.github.io/Demos/devtools-css-get-started/) |
 | DOM Examples | Used for [Get started viewing and changing the DOM](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/dom/). | [/devtools-dom-get-started/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-dom-get-started) | [DOM Examples](https://microsoftedge.github.io/Demos/devtools-dom-get-started/) |
 | Explain Console errors and warnings in Copilot in Edge | Generates errors in the Console that can then be explained by using Copilot in Edge. | [/devtools-explain-error/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-explain-error) | [Explaining console errors demo](https://microsoftedge.github.io/Demos/devtools-explain-error/) |
-| Inspect tool demo | Used for [Analyze pages using the Inspect tool](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/css/inspect). | [/devtools-inspect/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-inspect) | [Inspect Demo](https://microsoftedge.github.io/Demos/devtools-inspect/) |
+| Inspect tool | Used for [Analyze pages using the Inspect tool](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/css/inspect). | [/devtools-inspect/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-inspect) | [Inspect Demo](https://microsoftedge.github.io/Demos/devtools-inspect/) |
 | Debugging JavaScript that adds two numbers | Used for [Get started debugging JavaScript](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/javascript/). | [/devtools-js-get-started/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-js-get-started) | [Demo: Debugging JavaScript with Microsoft Edge DevTools](https://microsoftedge.github.io/Demos/devtools-js-get-started/) |
 | Memory heap snapshot | Used for [Record heap snapshots using the Memory tool](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/memory-problems/heap-snapshots). | [/devtools-memory-heap-snapshot/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-memory-heap-snapshot) | n/a |
 | Performance Activity Tabs | Used for [View activities in a table](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-activities-in-a-table), about the **Performance** tool's **Bottom-Up**, **Call Tree**, and **Event Log** tabs. | [/devtools-performance-activitytabs/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-performance-activitytabs) | [Activity Tabs Demo](https://microsoftedge.github.io/Demos/devtools-performance-activitytabs/) |
 | Sluggish Animation | Used for [Introduction to the Performance tool](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/). | [/devtools-performance-get-started/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-performance-get-started) | [Sluggish Animation](https://microsoftedge.github.io/Demos/devtools-performance-get-started/) |
-| PostMessage Trace Events demo | Tests `postMessage` trace events in the **Performance** tool.  Used for [View activities in a table](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-activities-in-a-table) in _Performance features reference_. | [/devtools-postmessage-perf-timeline/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-postmessage-perf-timeline) | [PostMessage Trace Events demo](https://microsoftedge.github.io/Demos/devtools-postmessage-perf-timeline/) |
+| postMessage Trace Events | Tests `postMessage` trace events in the **Performance** tool.  Used for [View messages between windows, iframes, and dedicated workers](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-messages-between-windows-iframes-and-dedicated-workers) in _Performance features reference_. | [/devtools-postmessage-perf-timeline/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-postmessage-perf-timeline) | [postMessage Trace Events demo](https://microsoftedge.github.io/Demos/devtools-postmessage-perf-timeline/) |
 | CSS :target pseudo-class | Used for [Support forcing the :target CSS state](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/whats-new/2021/01/devtools#support-forcing-the-target-css-state). | [/devtools-target-pseudo/](https://github.com/MicrosoftEdge/Demos/tree/main/devtools-target-pseudo) | [CSS :target pseudo-class demo](https://microsoftedge.github.io/Demos/devtools-target-pseudo/) |
 | Heap Snapshot Visualizer | Source code for the [Heap Snapshot Visualizer](https://microsoftedge.microsoft.com/addons/detail/heap-snapshot-visualizer/fceldlhognbemkgfacnffkdanocidgce) extension for DevTools. | [/heap-snapshot-visualizer/](https://github.com/MicrosoftEdge/Demos/tree/main/heap-snapshot-visualizer) | n/a |
 | JSON dummy data | Simple JSON files.  Used for [View formatted JSON](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/json-viewer/json-viewer). | [/json-dummy-data/](https://github.com/MicrosoftEdge/Demos/tree/main/json-dummy-data) | [JSON dummy data](https://microsoftedge.github.io/Demos/json-dummy-data/) |
 | Inspect Network Activity | Used for [Inspect network activity](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/network/). | [/network-tutorial/](https://github.com/MicrosoftEdge/Demos/tree/main/network-tutorial) | [Inspect Network Activity Demo](https://microsoftedge.github.io/Demos/network-tutorial/) |
-| Photo gallery demo | Used for [The truth about CSS selector performance](https://blogs.windows.com/msedgedev/2023/01/17/the-truth-about-css-selector-performance/). | [/photo-gallery/](https://github.com/MicrosoftEdge/Demos/tree/main/photo-gallery) | [Photo Gallery](https://microsoftedge.github.io/Demos/photo-gallery/) |
-| Slow calendar demo | Simple calendar demo app to test DevTools features such as the **Performance** tool and source map support. | [/slow-calendar/](https://github.com/MicrosoftEdge/Demos/tree/main/slow-calendar) | [Slow calendar demo](https://microsoftedge.github.io/Demos/slow-calendar/public/) |
-| Workspaces demo | Used for [Edit files with Workspaces (Filesystem tab)](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/workspaces), in the **Sources** tool. | [/workspaces/](https://github.com/MicrosoftEdge/Demos/tree/main/workspaces) | [DevTools Workspaces Demo](https://microsoftedge.github.io/Demos/workspaces/) |
+| Photo gallery | Used for [The truth about CSS selector performance](https://blogs.windows.com/msedgedev/2023/01/17/the-truth-about-css-selector-performance/). | [/photo-gallery/](https://github.com/MicrosoftEdge/Demos/tree/main/photo-gallery) | [Photo Gallery](https://microsoftedge.github.io/Demos/photo-gallery/) |
+| Slow Calendar | Simple calendar demo app to test DevTools features such as the **Performance** tool and source map support. | [/slow-calendar/](https://github.com/MicrosoftEdge/Demos/tree/main/slow-calendar) | [Slow Calendar](https://microsoftedge.github.io/Demos/slow-calendar/public/) |
+| Workspaces | Used for [Edit files with Workspaces (Filesystem tab)](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/workspaces), in the **Sources** tool. | [/workspaces/](https://github.com/MicrosoftEdge/Demos/tree/main/workspaces) | [DevTools Workspaces Demo](https://microsoftedge.github.io/Demos/workspaces/) |
 
 
 #### Microsoft Edge extensions
@@ -124,6 +124,6 @@ contact [opencode@microsoft.com](mailto:opencode@microsoft.com) with any additio
 
 This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft 
 trademarks or logos is subject to and must follow 
-[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks/usage/general).
+[Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/legal/intellectualproperty/trademarks/usage/general).
 Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
 Any use of third-party trademarks or logos are subject to those third-party's policies.
diff --git a/devtools-postmessage-perf-timeline/README.md b/devtools-postmessage-perf-timeline/README.md
index cf62182..28b925c 100644
--- a/devtools-postmessage-perf-timeline/README.md
+++ b/devtools-postmessage-perf-timeline/README.md
@@ -1,7 +1,5 @@
-# DevTools performance features reference - PostMessage Trace Events
+# postMessage Trace Events
 
 ➡️ **[Open the demo](https://microsoftedge.github.io/Demos/devtools-postmessage-perf-timeline/)** ⬅️
 
-This is the source code for the demo page used in the Microsoft Edge DevTools docs: [Performance features reference > PostMessage Trace](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-activities-in-a-table).
-
-<!-- TODO: Update link once it's ready -->
\ No newline at end of file
+This demo tests `postMessage` trace events in the **Performance** tool.  Used by [View messages between windows, iframes, and dedicated workers](https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-messages-between-windows-iframes-and-dedicated-workers) in _Performance features reference_.
diff --git a/devtools-postmessage-perf-timeline/iframe.html b/devtools-postmessage-perf-timeline/iframe.html
index 6fb0b4f..e3d01c2 100644
--- a/devtools-postmessage-perf-timeline/iframe.html
+++ b/devtools-postmessage-perf-timeline/iframe.html
@@ -11,7 +11,7 @@
 </head>
 
 <body>
-    <b>IFrame: </b>
+    <b>iframe:</b>
     <button style="display: block; margin-top: 1.5em ;">Send message to main frame</button>
     <p id="iframe-result-text">Received 0 messages</p>
 
diff --git a/devtools-postmessage-perf-timeline/index.html b/devtools-postmessage-perf-timeline/index.html
index b6a9200..92f27e6 100644
--- a/devtools-postmessage-perf-timeline/index.html
+++ b/devtools-postmessage-perf-timeline/index.html
@@ -5,19 +5,24 @@
     <meta charset="UTF-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>PostMessage Trace Events demo</title>
+    <title>postMessage Trace Events demo</title>
     <link rel="icon" type="image/png" href="https://edgestatic.azureedge.net/welcome/static/favicon.png">
     <link rel="stylesheet" href="style.css">
 </head>
 
 <body>
-    <h1>PostMessage Trace Events demo</h1>
-    <p>This page provides an interface to send messages between the main frame and an embedded iframe.
-    <p>This is part of a tutorial showing an affordance in the timeline of a performance trace which allows
-        developers easily investigate when postmessage calls occur, how long the message queued for before
-        the postmessage handler starts.
+    <h1>postMessage Trace Events demo</h1>
+    <p>
+        This demo page provides an interface to send messages between the main frame and an embedded iframe.
     </p>
-    <b>Main Frame: </b>
+    <p>
+        This is part of a tutorial that demonstrates a feature in the timeline of a performance trace that allows
+        you to easily investigate when a <code>postMessage</code> call occurred, 
+        and how long the message was queued before the <code>postMessage</code> handler started.
+    </p>
+        Used by <a href="https://learn.microsoft.com/microsoft-edge/devtools-guide-chromium/evaluate-performance/reference#view-messages-between-windows-iframes-and-dedicated-workers">View messages between windows, iframes, and dedicated workers</a> in <em>Performance features reference</em>.
+    </p>
+    <b>Main frame:</b>
     <button style="display: block; margin-top: 1.5em ;">Send message to iframe</button>
     <p id="main-frame-result-text">Received 0 messages</p>
     <iframe src="./iframe.html"></iframe>