diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,6 +1,8 @@
 # clo
 another personal draught of a typesetting language and engine.
 website: https://kianting.info/wiki/w/Project:Clo
+License: MIT
+
 ## changing journal
  - 20230904 建立 thenDo、matchRange的函數、refactor harfbuzzjs 以及libpdf 等測試界面
  - 20230905-06: 建立 : `toSome`, initial of basic tokenizer (`tokenize`),