diff --git a/README.md b/README.md
index 8ce4f42..626777d 100644
--- a/README.md
+++ b/README.md
@@ -8,10 +8,10 @@ Description
 
 This program is derived from comint-mode and provides the following features.
 
-  * token completion, same as Node.js REPL
-  * file name completion in string
-  * incremental history search
-  * sending JavaScript codes to REPL
+* token completion, same as Node.js REPL
+* file name completion in string
+* incremental history search
+* sending JavaScript codes to REPL
 
 Usage
 -----
@@ -19,20 +19,24 @@ Usage
 Put this file in your Emacs lisp path (e.g. ~/.emacs.d/site-lisp)
 and add the following line to your .emacs:
 
-    (require 'nodejs-repl)
+```elisp
+(require 'nodejs-repl)
+```
 
 Type `M-x nodejs-repl` to run Node.js REPL.
 See also `comint-mode` to check key bindings.
 
 You can define key bindings to send JavaScript codes to REPL like below:
 
-    (add-hook 'js-mode-hook
-              (lambda ()
-                (define-key js-mode-map (kbd "C-x C-e") 'nodejs-repl-send-last-expression)
-                (define-key js-mode-map (kbd "C-c C-j") 'nodejs-repl-send-line)
-                (define-key js-mode-map (kbd "C-c C-r") 'nodejs-repl-send-region)
-                (define-key js-mode-map (kbd "C-c C-l") 'nodejs-repl-load-file)
-                (define-key js-mode-map (kbd "C-c C-z") 'nodejs-repl-switch-to-repl)))
+```elisp
+(add-hook 'js-mode-hook
+          (lambda ()
+            (define-key js-mode-map (kbd "C-x C-e") 'nodejs-repl-send-last-expression)
+            (define-key js-mode-map (kbd "C-c C-j") 'nodejs-repl-send-line)
+            (define-key js-mode-map (kbd "C-c C-r") 'nodejs-repl-send-region)
+            (define-key js-mode-map (kbd "C-c C-l") 'nodejs-repl-load-file)
+            (define-key js-mode-map (kbd "C-c C-z") 'nodejs-repl-switch-to-repl)))
+```
 
 When a version manager such as nvm is used to run different versions
 of Node.js, it is often desirable to start the REPL of the version
@@ -40,19 +44,23 @@ specified in the .nvmrc file per project.  In such case, customize the
 `nodejs-repl-command` variable with a function symbol.  That function
 should query nvm for the Node.js command to run.  For example:
 
-    (require 'nodejs-repl)
-    (defun nvm-which ()
-      (let* ((shell (concat (getenv "SHELL") " -l -c 'nvm which'"))
-             (output (shell-command-to-string shell)))
-        (cadr (split-string output "[\n]+" t))))
-    (setq nodejs-repl-command #'nvm-which)
+```elisp
+(require 'nodejs-repl)
+(defun nvm-which ()
+  (let* ((shell (concat (getenv "SHELL") " -l -c 'nvm which'"))
+         (output (shell-command-to-string shell)))
+    (cadr (split-string output "[\n]+" t))))
+(setq nodejs-repl-command #'nvm-which)
+```
 
 The `nvm-which` function can be simpler, and perhaps can run faster,
 too, if using Bash:
 
-    (defun nvm-which ()
-      (let ((output (shell-command-to-string "source ~/.nvm/nvm.sh; nvm which")))
-        (cadr (split-string output "[\n]+" t))))
+```elisp
+(defun nvm-which ()
+  (let ((output (shell-command-to-string "source ~/.nvm/nvm.sh; nvm which")))
+    (cadr (split-string output "[\n]+" t))))
+```
 
 Author
 ------
@@ -63,7 +71,7 @@ Takeshi Arabiki (abicky)
 Copyright and License
 ---------------------
 
-Copyright (C) 2012-2017  Takeshi Arabiki (abicky)
+Copyright (C) 2012-2018  Takeshi Arabiki (abicky)
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/nodejs-repl.el b/nodejs-repl.el
index 9a16def..f7bac73 100644
--- a/nodejs-repl.el
+++ b/nodejs-repl.el
@@ -44,6 +44,26 @@
 ;;                 (define-key js-mode-map (kbd "C-c C-l") 'nodejs-repl-load-file)
 ;;                 (define-key js-mode-map (kbd "C-c C-z") 'nodejs-repl-switch-to-repl)))
 ;;
+;; When a version manager such as nvm is used to run different versions
+;; of Node.js, it is often desirable to start the REPL of the version
+;; specified in the .nvmrc file per project.  In such case, customize the
+;; `nodejs-repl-command` variable with a function symbol.  That function
+;; should query nvm for the Node.js command to run.  For example:
+;;
+;;     (require 'nodejs-repl)
+;;     (defun nvm-which ()
+;;       (let* ((shell (concat (getenv "SHELL") " -l -c 'nvm which'"))
+;;              (output (shell-command-to-string shell)))
+;;         (cadr (split-string output "[\n]+" t))))
+;;     (setq nodejs-repl-command #'nvm-which)
+;;
+;; The `nvm-which` function can be simpler, and perhaps can run faster,
+;; too, if using Bash:
+;;
+;;     (defun nvm-which ()
+;;       (let ((output (shell-command-to-string "source ~/.nvm/nvm.sh; nvm which")))
+;;         (cadr (split-string output "[\n]+" t))))
+;;
 
 (require 'cc-mode)
 (require 'comint)