Add more details to README
Fixing pentaho xml
Removing purchases.txt
Fixing review comments
Fix formatting
Adding share and discuss
Fix formatting
Update README.rst
Fix formatting
Fix file list
Adding diagram
Fix doc position
Update README.rst
Update README.rst
Update README.rst
Rename PurchaseTrackerApp -> PurchaseApp
Merge branch 'feature/add-README' of github.com:cdap-guides/cdap-bi-guide into feature/add-README

Conflicts:
	README.rst
	resources/total_spend_per_user.ktr