diff --git a/README.md b/README.md
new file mode 100644
index 0000000..9dcbe1b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+# bbs-ruby
+
+Run Ruby code on Maple-itoc BBS with Sandbox.
+
+Note: Really old code. I'm not going to maintain it, use it at your own risk.
+
+License: MIT
+Author: Zero Cho