Fix typo

Update readme, drop lesson 9 - out of scope

Apply specular + 5 & some consistency to shaders

Add ambient occlusion render function

Merge branch 'gh-pages' into master

Merge branch 'lesson-7' into master

Add Shadow Mapping

forgot to build it, edit build script

Add rotating camera with simple control

Add build command for gh-pages

First demo with just rotating head model

Edit demo page little

Apply uniform light update & rotate light in demo

Refactor to make standalone renderer

Fix perspective matrix to use distance