[Pharo-dev] Help required for understanding a project on smalltalk hub

Hello All ! I have just started with Pharo and still grasping it features. I have come across a project on Smalltalk Hub http://smalltalkhub.com/#!/~BenjA/FullTextSearch ; a search application for Pharo. I wish to explore this project and enhance/improvise it further. It would be great if the author of this project, any of its contributors or simply a Pharo enthusiast would guide me on how to go about understanding the project. I am keen on broadening it further. Thanks Jigyasa