unrecommend the list endpoint

BUD-10: Add `blossom:<sha256>.ext` URI spec

README.md

@@ -38,7 +38,7 @@ Blossom Servers expose a few endpoints for managing blobs
   - `Authentication`: Signed [nostr event](./buds/02.md#upload-authorization-required)
   - Return a blob descriptor
 - `HEAD /upload` [BUD-06](./buds/06.md#head-upload---upload-requirements)
-- `GET /list/<pubkey>` [BUD-02](./buds/02.md#get-listpubkey---list-blobs)
+- `GET /list/<pubkey>` [BUD-02](./buds/02.md#get-listpubkey---list-blobs-unrecommended) _(optional, unrecommended)_
   - Returns an array of blob descriptors
   - `Authentication` _(optional)_: Signed [nostr event](./buds/02.md#list-authorization-optional)
 - `DELETE /<sha256>` [BUD-02](./buds/02.md#delete-sha256---delete-blob)

buds/02.md

@@ -76,7 +76,9 @@ Example Authorization event:
 }
 ```
 
-## GET /list/pubkey - List Blobs (Optional)
+## GET /list/pubkey - List Blobs (Unrecommended)
+
+**Note:** The `/list` endpoint is optional and unrecommended. It is not necessary for all servers to implement the `/list` endpoint. Servers MAY implement this endpoint, but are not required to do so.
 
 The `/list/<pubkey>` endpoint MUST return a JSON array of [Blob Descriptor](#blob-descriptor) that were uploaded by the specified pubkey