Add info about prebuilt version

Author: devongovett

README.md

@@ -4,6 +4,9 @@ A Node-style writable stream for [HTML5 Blobs](https://developer.mozilla.org/en-
 mostly useful in [Browserify](http://browserify.org/).  Allows you to take the output of any Node stream,
 and turn it into a Blob or Blob URL for opening in the browser, uploading to a server, etc.
 
+If you don't want to use Browserify, you can also 
+[download a prebuilt version](https://github.com/devongovett/blob-stream/releases) of the library.
+
 [![browser support](https://ci.testling.com/devongovett/blob-stream.png)
 ](https://ci.testling.com/devongovett/blob-stream)
 

package.json

@@ -7,7 +7,8 @@
     "test": "test"
   },
   "scripts": {
-    "test": "browserify test/index.js | testling"
+    "test": "browserify test/index.js | testling",
+    "build": "browserify --standalone blobStream . -o blob-stream.js"
   },
   "repository": {
     "type": "git",