[#300]: Note SchemeDirectedDocumentLoader in the unreleased changelog

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: anatoly-scherbakov

CHANGELOG.md

@@ -4,6 +4,8 @@
 
 ### Added
 - `pyld.FileDocumentLoader`: a document loader for local `file:` URLs with optional root confinement.
+- `pyld.SchemeDirectedDocumentLoader`: a document loader that dispatches URL
+  strings to per-scheme loaders.
 
 ## 3.2.0 - 2026-08-17