Docs: Update README

1. Update links
2. Make code style match other jQuery projects
3. Fix build & test instructions.
4. Don't mention Karma, we don't use it anymore

Author: mgol

README.md

@@ -1,29 +1,29 @@
 # jQuery Mouse Wheel Plugin
 
-A [jQuery](http://jquery.com/) plugin that adds cross-browser mouse wheel support with delta normalization.
+A [jQuery](https://jquery.com/) plugin that adds cross-browser mouse wheel support with delta normalization.
 
 In order to use the plugin, simply bind the `mousewheel` event to an element.
 
-It also provides two helper methods called `mousewheel` and `unmousewheel`
+It also provides two deprecated helper methods called `mousewheel` and `unmousewheel`
 that act just like other event helper methods in jQuery.
 
 The event object is updated with the normalized `deltaX` and `deltaY` properties.
-In addition there is a new property on the event object called `deltaFactor`. Multiply
+In addition, there is a new property on the event object called `deltaFactor`. Multiply
 the `deltaFactor` by `deltaX` or `deltaY` to get the scroll distance that the browser
 has reported.
 
 Here is an example of using both the bind and helper method syntax:
 
 ```js
 // using on
-$('#my_elem').on('mousewheel', function(event) {
-    console.log(event.deltaX, event.deltaY, event.deltaFactor);
-});
-
-// using the event helper
-$('#my_elem').mousewheel(function(event) {
-    console.log(event.deltaX, event.deltaY, event.deltaFactor);
-});
+$( "#my_elem" ).on( "mousewheel", function( event ) {
+    console.log( event.deltaX, event.deltaY, event.deltaFactor );
+} );
+
+// using the event helper - not recommended!
+$( "#my_elem" ).mousewheel( function( event ) {
+    console.log( event.deltaX, event.deltaY, event.deltaFactor );
+} );
 ```
 
 The old behavior of adding three arguments (`delta`, `deltaX`, and `deltaY`) to the
@@ -36,7 +36,6 @@ The combination of browsers, operating systems, and devices offer a huge range o
 uses a trackpad and then a physical mouse wheel the delta values can differ wildly. This plugin normalizes those
 values so you get a whole number starting at +-1 and going up in increments of +-1 according to the force or
 acceleration that is used. This number has the potential to be in the thousands depending on the device.
-Check out some of the data collected from users [here](http://mousewheeldatacollector.herokuapp.com/).
 
 ### Getting the scroll distance
 
@@ -47,16 +46,15 @@ event property to find the scroll distance the browser reported.
 The `deltaFactor` property was added to the event object in 3.1.5 so that the actual reported delta value can be
 extracted. This is a non-standard property.
 
-## Building the code in the repo
+## Building the code in the repo & running tests
 
 ```sh
-$ git clone git@github.com:jquery/jquery-mousewheel.git
-$ cd jquery-mousewheel/
-$ npm install
-$ npm run build
-$ npm run karma
+git clone git@github.com:jquery/jquery-mousewheel.git
+cd jquery-mousewheel/
+npm install
+npm test
 ```
 
-The unit tests run by karma are _very_ basic sanity checks; improvements welcome.
+The unit tests are _very_ basic sanity checks; improvements welcome.
 To fully test the plugin, load [test/index.html](test/index.html) in each supported
 browser and follow the instructions at the top of the file after the unit tests finish.