From bf87a99f69a1c00fc12bc06e722f076a81e31d92 Mon Sep 17 00:00:00 2001
From: hyung-hwan <hyunghwan.chung@gmail.com>
Date: Fri, 6 Apr 2018 15:29:34 +0000
Subject: [PATCH] udpated README.md

---
 README.md | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/README.md b/README.md
index 0cd791d..2fbca16 100644
--- a/README.md
+++ b/README.md
@@ -5,9 +5,9 @@
 A HCL program is composed of more expressions.
 
 ## Keywords
-nil
-true
-false
+* nil
+* true
+* false
 
 ## Special Form Expression
 * and
@@ -37,6 +37,27 @@ false
 
 ## Builtin functions
 
+* not
+* _and
+* _or
 * eqv?
+* eql?
 * eqk?
+* nqv?
+* nql?
+* nqk?
+* sprintf
 * printf
+* +
+* -
+* *
+* mlt
+* /
+* quo
+* mod
+* sqrt
+* bit-and
+* bit-or
+* bit-xor
+* bit-not
+* bit-shift