Add link to explanation of "Egyptian brackets"

I linked to the K&R section in Wikipedia's [Indent Style](https://en.wikipedia.org/wiki/Indent_style) page, as I could not find a good reference for the exact "Egyptian style" term.

[Jeff Atwood's post](http://blog.codinghorror.com/new-programming-jargon/) provides a good description, but defines no anchors, making it AFAIK impossible to link directly to the relevant bit of information.