Add mention of assetURLs source property and add usage scenario to Process ADP endpoint

developers/distribute-with-altstore-pal.md

@@ -63,7 +63,7 @@ Even though you are distributing outside the App Store, you still need to submit
 Once Notarized, you'll need to download your app's ADP to then host it on your server.
 
 1. Download your ADP using our [REST API](rest-api.md#download-adp).
-2. Upload the complete package to your server. You must preserve the directory hierarchy exactly, and the hashes of each file must not change. In other words, **DO NOT modify the `manifest.json` in any way (e.g prettifying).**
+2. Upload the complete package to your server. Unless you intend to utilize the [assetURLs](https://faq.altstore.io/developers/make-a-source#asseturls-dictionary-of-strings) property of the source, you must preserve the directory hierarchy exactly. The hashes of each file must not change. In other words, **DO NOT modify the `manifest.json` in any way (e.g prettifying).**
 
 </details>
 

developers/rest-api.md

@@ -72,7 +72,7 @@ This endpoint requires a notarized ADP ID. [Get your ADP ID](https://developer.a
 
 `POST https://api.altstore.io/adps`
 
-Use this endpoint if you haven't set up marketplace notifications, or if you don't want to wait for our servers to process your app automatically. **You must include your ADP ID in the JSON request body under the `adpID` key.**
+Use this endpoint if you haven't set up marketplace notifications, or if you don't want to wait for our servers to process your app automatically, or if a previously-processed ADP download has expired. **You must include your ADP ID in the JSON request body under the `adpID` key.**
 
 After it finishes processing, you can use the Download ADP endpoint above to download it.