Update README.md with license information (#1)

- Update README.md with license information (434386be4362819c5ac4cabc80ce41ff58de79e9)


Co-authored-by: Chen Chongyu <[email protected]>

README.md

@@ -1,3 +1,6 @@
+---
+license: apache-2.0
+---
 ---
 license: llama3
 ---