Testing
Merge pull request #13 from spacekerala/master

Small changes...
path following 6.5
6.6 Path Following
6.7 separation
playing around with forEach syntax
reverting to for loop #17
6.8 and 6.9 ported
using HTML elements for text
removing extranenous p5.js files
referencing p5.js file that includes perlin noise
some chapter 7 cleanup
indent
Some changes