added text for cloud and backend
Merge branch 'master' of https://github.com/Fathalian/Guild

# By Zaryafaraj
# Via Zaryafaraj
* 'master' of https://github.com/Fathalian/Guild:
  added content for front end, machine learning and iOS
  added home button to track page

Conflicts:
	app/scripts/services/trackServices.js