Updated the page builder and changed css
moved around pages
	modified:   beaglecar/intro.html
	modified:   beaglecar/intro.md
	renamed:    beaglecar/intro.html -> beaglecar/part1.html
	renamed:    beaglecar/intro.md -> beaglecar/part1.md
	modified:   builder.py
	modified:   css/homepage.css
	modified:   index.html