Critiques and Suggestions

Thanks Yaashaar I have updated the page considering your feedbacks. Please have a look and update the marks as you feel. Specifically, I added the Motivational Examples, one at the very beginning and also for many important sections such as direct/indirect causes, establishing cause-effect relationship etc. Links to broader concepts such as System Models etc are also added for interested users. I have also corrected the typos, and added math tags for better readability. Hope this helps