added science world heuristic report to project
added a screenshot of science world section
added science world heuristic page to project
validated; fixed errors for missing alt in images
removed left padding for nav.main-menu. validated and fixed all "-" to "_"
validated; added alt to imgs
validated; added heuristic project to #work
page now responds to >1280px, <1280px, <768px
made windowWidth respond to 1024