1 files changed, 20 insertions, 30 deletions

diff --git a/README.md b/README.md
index 0ba7922..02b9116 100644
--- a/README.md
+++ b/README.md
@@ -1,39 +1,29 @@
-# pict-sexp
-Draw sexp.
+# pict-cons
+Draw cons.
 
-![fib.png](https://raw.githubusercontent.com/wiki/tojoqk/pict-sexp/images/fib.png)
+![example1.png](https://files.tojo.tokyo/pict-cons/example1.png)
 
 # INSTALL
-```
-raco pkg install https://github.com/tojoqk/pict-sexp.git
-```
+
+    raco pkg install https://github.com/tojoqk/pict-cons.git
 
 # UPDATE
-```
-raco pkg update https://github.com/tojoqk/pict-sexp.git
-````
+
+    raco pkg update https://github.com/tojoqk/pict-cons.git
 
 # UNINSTALL
-```
-raco pkg remove pict-sexp
-```
+
+    raco pkg remove pict-cons
 
 # USAGE
-Save as "pict-fib.png".
-```
-#lang racket
-(require pict)
-(require pict-sexp)
-
-(define pict-fib
-  (pict-sexp
-   '(define (fib n)
-      (cond
-        [(= n 0) 0]
-        [(= n 1) 1]
-        [else
-         (+ (fib (- n 1))
-            (fib (- n 2)))]))))
-
-(send (pict->bitmap pict-fib) save-file "pict-fib.png" 'png)
-```
+
+Save as "pict-example.png".
+
+    #lang racket
+    (require pict)
+    (require pict-cons)
+    
+    (define pict-example
+      (pict-cons '(+ a (* b c))))
+    
+    (send (pict->bitmap pict-example) save-file "pict-example.png" 'png)