Update README.md (#281)

* Update README.md

* Update README.md

Co-authored-by: Gavin Barron <gavinbarron@microsoft.com>

---------

Co-authored-by: Gavin Barron <gavinbarron@microsoft.com>

Author: garrytrinder

README.md

@@ -31,24 +31,24 @@
     <svg aria-hidden="true" height="16" viewBox="0 0 16 16" version="1.1" width="16" data-view-component="true" class="octicon octicon-device-camera-video">
     <path d="M16 3.75v8.5a.75.75 0 0 1-1.136.643L11 10.575v.675A1.75 1.75 0 0 1 9.25 13h-7.5A1.75 1.75 0 0 1 0 11.25v-6.5C0 3.784.784 3 1.75 3h7.5c.966 0 1.75.784 1.75 1.75v.675l3.864-2.318A.75.75 0 0 1 16 3.75Zm-6.5 1a.25.25 0 0 0-.25-.25h-7.5a.25.25 0 0 0-.25.25v6.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0 .25-.25v-6.5ZM11 8.825l3.5 2.1v-5.85l-3.5 2.1Z"></path>
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-    <span aria-label="Video description DeveloperProxyBuildDemo.mp4" class="m-1">DeveloperProxyBuildDemo.mp4</span>
+    <span aria-label="" class="m-1">📽️ Simulate throttling using Microsoft 365 Developer Proxy</span>
     <span class="dropdown-caret"></span>
   </summary>
 
-  <video src="https://user-images.githubusercontent.com/11563347/242093295-93b453fd-df3d-433a-a35c-483830ecba75.mp4" data-canonical-src="https://user-images.githubusercontent.com/11563347/242093295-93b453fd-df3d-433a-a35c-483830ecba75.mp4" controls="controls" muted="muted" class="d-block rounded-bottom-2 border-top width-fit" style="max-height:640px; min-height: 200px">
+  <video src="https://user-images.githubusercontent.com/11563347/249426565-412849a4-15bb-446d-acd8-40b9d64ef8bc.mp4" data-canonical-src="https://user-images.githubusercontent.com/11563347/249426565-412849a4-15bb-446d-acd8-40b9d64ef8bc.mp4" controls="controls" muted="muted" class="d-block rounded-bottom-2 border-top width-fit" style="max-height:640px; min-height: 200px">
 
   </video>
 </details>
 </p>
 
-Microsoft 365 Developer Proxy is a command line tool for testing Microsoft Graph and other APIs.
+Microsoft 365 Developer Proxy is a command line tool for testing Microsoft Graph, SharePoint Online and any other HTTP APIs.
 
 It aims to provide a better way to test applications.
 
 Use the proxy to:
 
 - simulate errors
-- simulate throttling
+- simulate API behaviours
 - mock responses
 
 Identify and fix issues in your code before they reach production.
@@ -92,6 +92,7 @@ m365proxy --failure-rate 50 --no-mocks --allowed-errors 429 503
 - record proxy activity
 - get proxy activity summary report
 - detect minimal Microsoft Graph API permissions
+- check for excessive Microsoft Graph API permissions
 
 ## Trademarks