See issue #10 - provide support for optional settings, including prevention of the mousewheel event and the speed of scrolling
Example codes added by @GregDThomas.
Update README.md

Optional parameter support.
Release 0.3.2.

Patch notes
1. Optional parameter support.
 - wheelSpeed
 - wheelPropagation
2. Example codes added.
Apply jshint.
Release 0.3.3.

Patch notes
1. Apply jshint.
2. Fix jQuery plugin site version problem.