Update index.html (for gh-pages)

Added "fork me on github"
Fix brick 'class' and js formatting
Fixes

- Removed stupid fancy graphics.
- Logo is now SVG
- Removed alert box on Web audio fail (pending other changes)
- Remaking design (not finished)
Few things

- Logo fix stroke width
- Added Holding and Next canvas
- Fixes for CSS (unused stuff, added animations)
Soon to be prettier (and working)
Few things done
More css less code + more
JS Format
Next field and holding field..

Oops..
Grid experiment
Few fixes

next field didnt work
css and ctx fix for next and hold field
Merge remote-tracking branch 'origin/version2' into gh-pages

Conflicts:
	index.html
commit