register -> on & on:spec:file:preprocessor -> file:preprocessor

Author: chrisbreiding

README.md

@@ -17,8 +17,8 @@ In your project's [plugins file](https://on.cypress.io/guides/plugins):
 ```javascript
 const browserify = require('@cypress/browserify-preprocessor')
 
-module.exports = (register, config) => {
-  register('on:spec:file:preprocessor', browserify(config))
+module.exports = (on, config) => {
+  on('file:preprocessor', browserify(config))
 }
 ```
 
@@ -27,15 +27,15 @@ module.exports = (register, config) => {
 Pass in options as the second argument to `browserify`:
 
 ```javascript
-module.exports = (register, config) => {
+module.exports = (on, config) => {
   const options = {
     extensions: [],
     watchOptions: {},
     transforms: [],
     onBundle () {},
   }
 
-  register('on:spec:file:preprocessor', browserify(config, options))
+  on('file:preprocessor', browserify(config, options))
 }
 ```
 
@@ -116,11 +116,11 @@ If, for example, you want to update the options for the `babelify` transform to
 ```javascript
 const browserify = require('@cypress/browserify-preprocessor')
 
-module.exports = (register, config) => {
+module.exports = (on, config) => {
   const options = browserify.defaultOptions
   options.transforms[1].options.babelrc = true
 
-  register('on:spec:file:preprocessor', browserify(config, options))
+  on('file:preprocessor', browserify(config, options))
 }
 ```
 

index.js

@@ -50,7 +50,7 @@ const defaultOptions = {
 // export a function that returns another function, making it easy for users
 // to configure like so:
 //
-// register('on:spec:file:preprocessor', browserify(config, userOptions))
+// on('file:preprocessor', browserify(config, userOptions))
 //
 const preprocessor = (config, userOptions = {}) => {
   log('received user options', userOptions)
@@ -63,7 +63,7 @@ const preprocessor = (config, userOptions = {}) => {
   const options = Object.assign({}, defaultOptions, userOptions)
 
   // we return function that accepts the arguments provided by
-  // the event 'on:spec:file:preprocessor'
+  // the event 'file:preprocessor'
   //
   // this function will get called for the support file when a project is loaded
   // (if the support file is not disabled)