Fix for ambiguous doc.

See http://superuser.com/questions/684352/add-keybinding-to-js-mode-javascript-mode-in-emacs

README.md

@@ -37,10 +37,16 @@ Add the following to your emacs init file.
     (require 'web-beautify) ;; Not necessary if using ELPA package
     (eval-after-load 'js2-mode
       '(define-key js2-mode-map (kbd "C-c b") 'web-beautify-js))
+    ;; Or if you're using 'js-mode' (a.k.a 'javascript-mode')
+    (eval-after-load 'js
+      '(define-key js-mode-map (kbd "C-c b") 'web-beautify-js))
+
     (eval-after-load 'json-mode
       '(define-key json-mode-map (kbd "C-c b") 'web-beautify-js))
+
     (eval-after-load 'sgml-mode
       '(define-key html-mode-map (kbd "C-c b") 'web-beautify-html))
+
     (eval-after-load 'css-mode
       '(define-key css-mode-map (kbd "C-c b") 'web-beautify-css))
 
@@ -52,6 +58,12 @@ add the following hook to your emacs configuration:
                  (lambda ()
                    (add-hook 'before-save-hook 'web-beautify-js-buffer t t))))
 
+    ;; Or if you're using 'js-mode' (a.k.a 'javascript-mode')
+    (eval-after-load 'js
+      '(add-hook 'js-mode-hook
+                 (lambda ()
+                   (add-hook 'before-save-hook 'web-beautify-js-buffer t t))))
+
     (eval-after-load 'json-mode
       '(add-hook 'json-mode-hook
                  (lambda ()