Visit the live example in https://yosa.github.io/melisa-pens-todomvc/ or edit http://codepen.io/yosa/full/mRddoz/
The Ext JS website is a great resource for getting started.
Here are some links you may find helpful:
If you have other helpful links to share, or find any of the links above no longer work, please let us know.
Created by Luis Heredia