Update pages/block-storage/how-to/create-a-volume.mdx

Co-authored-by: Jessica <[email protected]>

Author: SamyOubouaziz

pages/block-storage/how-to/create-a-volume.mdx

@@ -37,7 +37,7 @@ categories:
           Alternatively, use the [Instances API](https://www.scaleway.com/en/developers/api/instance/#path-instance-types-list-instance-types) to check the `block_bandwidth` field at `/instance/v1/zones/{zone}/products/servers`.  
           This field provides detailed information about block bandwidth for each Instance type, helping you ensure compatibility with high-performance storage.
         </Message>
-        - Define a volume size of at least 5GB.
+        - Define a volume size of at least 5 GB.
     - Optionally, select an Instance from the drop-down to attach your volume.
     - Verify the estimated cost.
 4. Click **Create volume**. The volumes overview page displays.