README Fixes

I stumbled upon this package on Reddit and it looked interesting. I noticed some problems in the README as I was checking it out so I decided to pitch in and fix them.

But FYI the "go way" is to add comments to your source code such that [GoDoc](http://godoc.org/-/about) can parse and present your full documentation (see: [underscore.go](http://godoc.org/github.com/tobyhede/underscore.go/src) vs [goji/web](http://godoc.org/github.com/zenazn/goji/web)).