doc(index): added a small recap of what CCW is on the index page
doc(index): added a small recap of what CCW is on the index page

noncom/ccw,noncom/ccw,michelangelo13/ccw,laurentpetit/ccw,laurentpetit/ccw,noncom/ccw,michelangelo13/ccw,ccw-ide/ccw,laurentpetit/ccw,ccw-ide/ccw,michelangelo13/ccw,ccw-ide/ccw