Checked-in screenshot of adding a cache-control header

Author: johnnycardy

docs/images/deploy-create-cdn-cache-control-header.png

@@ -66,7 +66,7 @@ Create a new CDN profile and associate the CDN endpoint with this BLOB container
 
 1. To allow scripts to be cached by the SharePoint service worker, add an appropriate Cache-Control response header to the CDN endpoint.
 
-    ![Screenshot of add a cache control header](https://user-images.githubusercontent.com/904610/222584167-f98f7b39-2a18-49d6-8a25-465df05a2276.png)
+    ![Screenshot of add a cache control header](../../../images/deploy-create-cdn-cache-control-header.png)
 
 Because you associated the CDN endpoint with your storage account, you can also access the BLOB container at the following URL: **`http://spfxsamples.azureedge.net/azurehosted-webpart/`**