Add a watch command, update README.

CONTRIBUTING.md

@@ -4,7 +4,7 @@
 
 The source of opentype.js is divided into modules, located in the `src` directory.
 
-We use [browserify](http://browserify.org/) to combine this into a single package with every release.
+We use [rollup](https://rollupjs.org/) to combine this into a single package with every release.
 
 When creating a pull request, you **don't** need to run `npm run dist` -- we'll do that when creating a release.
 
@@ -21,7 +21,7 @@ When creating a pull request, you **don't** need to run `npm run dist` -- we'll
     A dedicated branch for your pull request means you can develop multiple features at the same time, and ensures
     that your pull request is stable even if you later decide to develop an unrelated feature.
 
-4. Install the development dependencies (browserify, watchify, jshint, ...):
+4. Install the development dependencies:
 
     `cd opentype.js`
     `npm install`
@@ -30,8 +30,7 @@ When creating a pull request, you **don't** need to run `npm run dist` -- we'll
 
     `npm start`
 
-   Note that the compiled file ends up in the `build` folder, not the `dist` folder! The development server
-   rewrites the JavaScript URL from `dist/opentype.min.js` to `build/opentype.js`.
+   This bundles all source files under `dist/opentype.js`.
 
 6. Make some changes
 

README.md

@@ -26,7 +26,7 @@ Here's an example. We load a font, then display it on a canvas with id "canvas":
         }
     });
 
-See [the project website](http://nodebox.github.io/opentype.js/) for a live demo.
+See [the project website](https://opentype.js.org/) for a live demo.
 
 Features
 ========
@@ -47,6 +47,12 @@ Installation
 [Download the latest ZIP](https://github.com/nodebox/opentype.js/archive/master.zip) and grab the files in the `dist`
 folder. These are compiled.
 
+### Using npm
+
+    npm install --save opentype.js
+
+OpenType.js uses ES6-style imports, so debugging it in Node.js requires running `npm run build` first. Use `npm run watch` to automatically rebuild when files change.
+
 ### Using Bower
 
 To install using [Bower](http://bower.io/), enter the following command in your project directory:
@@ -57,14 +63,6 @@ You can then include them in your scripts using:
 
     <script src="/bower_components/opentype.js/dist/opentype.js"></script>
 
-### Using Node / Browserify
-
-To install using [Browserify](http://browserify.org/), enter the following command in your project directory:
-
-    npm install --save opentype.js
-
-OpenType.js uses ES6-style imports, so debugging it in Node.js requires running `npm run build` first.
-
 API
 ===
 ### Loading a font

package.json

@@ -26,6 +26,7 @@
   },
   "scripts": {
     "start": "node ./bin/server.js",
+    "watch": "rollup -c -w",
     "test": "mocha --require reify --compilers js:buble/register --recursive && jshint . && jscs .",
     "build": "rollup -c",
     "minify": "cross-env MINIFY=1 npm run build",