Minor edit
Refactored TODOs
Put an image of kiwi from Wikipedia under track
Changed the syntax for labeling text and reference to labeled text to match
URL; replaced the syntactic examples for hyper-references with simply a
mention of URL; adapted the syntax for images; removed support of text file
inclusion.
Renamed README.md to Kiwi.md, hence started the first step to come out a standalone specification
Rephrased a bit; updated some links
A new README.md