Add --text-sigle option and 'newdoc' id support for standard UD CoNLL-U input

Change-Id: I76277c47ca35a9b1263ab7433ba3e4d41d44124f
diff --git a/Changes b/Changes
index f963676..b9f012d 100644
--- a/Changes
+++ b/Changes
@@ -1,7 +1,9 @@
-0.7.0 2025-06-03
+0.7.0 2026-06-08
         - conllu2korapxml:
             - Add automatic offset computation from 'text' comments
               (implemented with AI assistance)
+            - new option --text-sigle <template> to derive text sigle from newdoc id
+              (implemented with AI assistance)
 
 0.6.3 2024-06-04
         - Trim filenames to fix double space after filename metadata