readme much better now

README.md

@@ -1,2 +1,19 @@
 # utterly
-Make your Mac utter, now in Swift
+Make your Mac utter, now in Swift (major rewrite of [Utter](https://github.com/michaelchadwick/utter))
+
+### Why Make This App (Again)?
+I'd had fun making [Utter](https://github.com/michaelchadwick/utter), but ran into some issues that I couldn't solve in its native Objective-C. Also, I wanted to write a modern Swift 3 app. So...I made **Utterly**.
+
+### Features
+* Simple GUI on top of _NSSpeechSynthesizer_. Enter text, and then either press ⌘-Enter or click the play button to hear it.
+* Stop, pause and resume speech.
+* Change the voice, speed/rate, pitch, pitchmod, or volume of the speech synthesis. Speech updates automatically as options change.
+* Save the speech to an AIFF on your desktop. Use the text itself as the filename, if you wish.
+* A picture of a cow!
+
+### Contributing
+Clone the repo and build the Xcode project. It was created in **Xcode 8**, and was targeted to **macOS 10.2**,  but _may_ work in earlier versions.
+
+### Questions, Feedback, Suggestions
+* [mike@codana.me](mailto:mike@codana.me)
+* [Other projects](http://codana.me/projects)