Update readme

README.md

@@ -7,12 +7,13 @@ It's made to look like Javascript, and actually run as Javascript,
 though the implementation has no official relation. It's a compact
 language that should be easy to implement in C++ as well.
 
+This is meant to be the endgame of the
+[Project It Yourself](http://macwright.org/2012/03/12/project-it-yourself.html)
+project - a way to represent arbitrary projections in a
+code-as-configuration way that allows for autoconfiguration.
+
 Goals
 
-* Non-crazy syntax, somewhat familiar to Javascript programmers
-* No side effects allowed
-* Type annotations
-* Compact syntax
 * Secure: no access to Javascript objects
 * Only numbers allowed: no other types
 * Tiny implementation
@@ -22,25 +23,6 @@ Goals
 
 Possible features:
 
-## Constants
-
-```javascript
-var HALFPI = 1.5707963267948966;
-var FORTPI = 0.78539816339744833;
-var PI = 3.14159265358979323846;
-var TWOPI = 6.2831853071795864769;
-var A = 6378137;
-var D2R = Math.PI / 180;
-```
-
-## Base Math library
-
-* Math.atan
-* Math.log
-* Math.fabs
-* Math.cos
-* Math.sin
-
 ## FAQ
 
 Why not JavaScript?