Table title string 'amount' changed to 'No of Units'

In some places amount refers to amount of money involved, so
amount is rename to No of Units to be explicit and easy to understand.
changed table header 'amount' to 'quantity'

In some places amount refers to amount of money involved, so 'amount' is renamed to 'quantity' to be explicit and easy to understand.
Merge pull request #52 from cryptdrift/master

Table header string 'amount' changed to 'quantity'