Error at paraphrasing re: Wiki Edits: more information added on various pages

[Paul Sonnenschein]

Hello!

> 1) I took the concrete example of the confused deputy problem from
> wikipedia and added it to the capabilities page.

I believe a minor error crept in at paraphrasing the example from the
Wikipedia article: The file in which the billing information is stored
is given the name "bills.txt" and is mentioned later as "billing.txt".

Thanks!