diff --git a/pl0/README.md b/pl0/README.md
new file mode 100644
index 0000000..07b4834
--- /dev/null
+++ b/pl0/README.md
@@ -0,0 +1,21 @@
+PL/0 language example
+=====================
+
+  https://en.wikipedia.org/wiki/PL/0
+
+  * PL/0 PEG syntax
+  * AST generation with symbol scope
+  * Interpreter (slow...)
+  * LLVM Code generation
+  * LLVM JIT execution (fast!)
+
+Usage
+-----
+
+```
+pl0 PATH [--ast] [--llvm] [--jit]
+
+  --ast: Show AST tree
+  --llvm: Dump LLVM IR
+  --jit: LLVM JIT execution
+```