Change fiddle link to `HTTPS`

Moved from:
https://github.com/mrdoob/three.js/wiki/build.py,-or-how-to-generate-a-compressed-Three.js-file

to:
https://github.com/mrdoob/three.js/wiki/Build-instructions

"Dummies" is condescending toward the audience. Let's give them some credit. ; )

Trying to be more specific in description and order.

Misteriously when using the latest version of the lib on the project I'm working on I'm getting this error:
> Uncaught TypeError: Object [object Object] has no method 'set'
This is caused when THREE.UniformsLib.common.diffuse initialises a THREE.Color (THREE.Color.set() seems to be undefined then).
For some reason this only happens when I load Box2D before three.js. If I load it after is all good. But this fixes the problem too.
/ping @bhouston

Now with the CSS3DRenderer it has become irrelevant.