Update docs/source/guide/storage.md

Author: makseq

docs/source/guide/storage.md

@@ -151,7 +151,7 @@ Add the **Storage Blob Data Reader** role, which includes:
 
 In this scenario, your browser receives an HTTP 303 redirect to a time-limited S3/GCS/Azure URL. This is the default behavior. The main benefit to using pre-signed URLs is if you want to ensure that your media files are isolated **from** the Label Studio network as much as possible. 
 
-![Screenshot of storage page with use pre-signed off](/images/storages/storage-proxy-presigned.png)
+<img src="/images/storages/storage-proxy-presigned.png" style="max-width:600px; margin: 0 auto" alt="Screenshot of storage page with use pre-signed off">
 
 The main benefit to using pre-signed URLs is if you want to ensure that your media files are isolated from the Label Studio network as much as possible.