diff --git a/README.md b/README.md
index 3418f0e9..c70e8bca 100644
--- a/README.md
+++ b/README.md
@@ -17,83 +17,9 @@ Picrin is a lightweight scheme implementation intended to comply with full R7RS
 - advanced REPL support (multi-line input, etc)
 - tiny & portable library (all functions will be in `libpicrin.so`)
 
-## Libraries
+## Documentation
 
-    - `(scheme base)`
-    - `(scheme write)`
-    - `(scheme cxr)`
-    - `(scheme file)`
-    - `(scheme inexact)`
-    - `(scheme time)`
-    - `(scheme process-context)`
-    - `(scheme load)`
-    - `(scheme lazy)`
-    - `(picrin macro)`
-    
-        - `define-macro`
-        - `gensym`
-        - `macroexpand`
-    
-            Old-fashioned macro.
-    
-        - `make-syntactic-closure`
-        - `identifier?`
-        - `identifier=?`
-    
-            Syntactic closures.
-    
-        - `er-macro-transformer`
-        - `ir-macro-transformer`
-    
-            Explicit renaming macro family.
-
-    - `(picrin regexp)`
-
-        - `(regexp? obj)`
-        - `(regexp ptrn [flags])`
-
-            Compiles pattern string into a regexp object. A string `flags` may contain any of #\g, #\i, #\m.
-
-        - `(regexp-match re input)`
-
-            Returns two values: a list of match strings, and a list of match indeces.
-
-        - `(regexp-replace re input txt)`
-        - `(regexp-split re input)`
-
-    - `(picrin control)`
-
-        - `(reset h)`
-        - `(shift k)`
-
-            delimited control operators
-
-	- `(picrin user)`
-
-		When you start the REPL, you are dropped into here.
-    
-    - `(srfi 1)`
-    
-        List manipulation library.
-
-    - `(srfi 95)`
-
-        Sorting and Marging.
-    
-
-## The REPL
-
-At the REPL start-up time, some usuful built-in libraries listed below will be automatically imported.
-
-- `(scheme base)`
-- `(scheme load)`
-- `(scheme process-context)`
-- `(scheme write)`
-- `(scheme file)`
-- `(scheme inexact)`
-- `(scheme cxr)`
-- `(scheme lazy)`
-- `(scheme time)`
+See http://picrin.readthedocs.org/
 
 ## Compliance with R7RS