Add a simple getting started section for anybody curious (read: nobody)

README.md

@@ -9,3 +9,22 @@ functionality in the future.
 
 
 
+## Getting started
+
+In order to build/test Sting, you'll need an Ada compiler and runtime. I'm
+currently using the [GNAT GPL 2012](http://libre.adacore.com/download/)
+toolkit.
+
+Once that's all downloaded/installed/whatever, you can start by running the
+tests:
+
+```
+% make test
+```
+
+Assuming that all worked out swimmingly, you can then build a release binary
+with:
+
+```
+% make release
+```