Updated tree grid example available for review and comment

Here is the updated treegrid example (issue 132):
https://rawgit.com/jongund/aria-practices/treegrid/examples/treegrid/treegrid-1.html


I made a pull request also.

Jon


Jon Gunderson, Ph.D.
Coordinator
Accessible IT Group
Disability Resources and Education Services
College of Applied Health Sciences
University of Illinois at Urbana-Champaign

E-mail: jongund@illinois.edu
WWW: http://disability.illinois.edu/academic-support/aitg