hw4 step 0: added bootstrap-combined-no-icons-.min.css
hw4 step 1: navbar added
bogfix: quotes
hw4 step 2: heading and subheading
hw4 step 3: video div
hw4 step 4: actions added
hw4 step 4: missing statistics tag
hw4 step 4: bugfix style .statistics p
hw4 step 4: style vertical actions for mobile devices
hw4 step 5: progress bar
hw4 step 6: action buttons
hw4 step 7: marketing copy added (lorem ipsum)
hw4 step 8: FAQ implemented
hw4 step 9: footer implemented