Docs: Update browser build documentation to reflect the current module development strategy.

docs/guide/browser.md

@@ -4,61 +4,39 @@ description: Guide to writing modules and optimizing browser bundles.
 
 # Browser Builds
 
-When developing a module that will need to work in a browser and does not use the entire Bitcore namespace, it's recommended to narrow the scope of the requires to the particular modules that are needed. It will produce a smaller browser bundle as it will only include the JavaScript that is nessessary. Below is a quick tutorial that will use three modules.
+When developing a module that will depend on Bitcore, it's recommended to exclude Bitcore in the distributed browser bundle when using browserify and to use the `--external bitcore` parameter. It will produce a smaller browser bundle, as it will only include the JavaScript that is nessessary, and will depend on the Bitcore browser build which is better for distribution.
 
 ## Tutorial
 
-**Step 1**: Require Bitcore Modules
+**Step 1**: Require Bitcore
 
-Here we require specific Bitcore modules that will be used in a `index.js` file:
+Here we require Bitcore and define the namespace (`index.js`):
 
 ```javascript
 
-var PrivateKey = require('bitcore/lib/privatekey');
+var bitcore = require('bitcore');
-var PublicKey = require('bitcore/lib/publickey');
+var PrivateKey = bitcore.PrivateKey;
-var Address = require('bitcore/lib/address');
+var PublicKey = bitcore.PublicKey;
-
+var Address = bitcore.Address;
-// the rest of the module here
 
 ```
 
+See the [main file](https://github.com/bitpay/bitcore/blob/master/index.js) for bitcore for a complete list, as well as the [Bitcore Documentation](index.md).
+
 **Step 2**: Browserifying
 
 Next we will generate a browser bundle using [browserify](https://www.npmjs.com/package/browserify) by running the command:
 
 ```bash
-browserify index.js -o index.browser.js
+browserify index.js:module-name --external bitcore -o module-name.js
 ```
 
-This will output a file `index.browser.js` at around 700KB *(the entire Bitcore namespace is around 2MB)*.
+This will output a file `module-name.js` with only the code loaded from `index.js` (bitcore.js will need to be loaded beforehand, which is around 145KB gzipped)
 
 **Step 3**: Uglifying
 
 This can be further optimized by using [uglifyjs](https://www.npmjs.com/package/uglify-js), and running the command:
 
 ```bash
-uglifyjs index.browser.js --compress --mangle -o index.browser.min.js
+uglifyjs module-name.js --compress --mangle -o module-name.min.js
 ```
-
-The resulting file `index.browser.min.js` in this case should be less than 300KB.
-
-## Modules
-
-Here is a list of some of the common modules:
-
-```javascript
-var Address = require('bitcore/lib/address');
-var Block = require('bitcore/lib/block');
-var BlockHeader = require('bitcore/lib/blockheader');
-var HDPrivateKey = require('bitcore/lib/hdprivatekey');
-var HDPublicKey = require('bitcore/lib/hdpublickey');
-var PaymentProtocol = require('bitcore/lib/paymentprotocol');
-var PrivateKey = require('bitcore/lib/privatekey');
-var PublicKey = require('bitcore/lib/publickey');
-var Script = require('bitcore/lib/script');
-var Transaction = require('bitcore/lib/transaction');
-var URI = require('bitcore/lib/uri');
-var Unit = require('bitcore/lib/unit');
-```
-
-For more informatation about each of the modules please see the [Bitcore Documentation](index.md).