syntax and usage in README

1 files changed, 19 insertions, 0 deletions

diff --git a/README.md b/README.md
index 4c9d76f..c1d61bd 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,22 @@ L-Systems.JS
 ============
 
 A full, 3D L-Systems implementation in JavaScript
+
+Syntax
+------
+
+ - `F`: move one unit vector forward
+ - `+` / `-`: turn right / left by angle `alpha`
+ - `&` / `^`: pitch up / down by angle `alpha`
+ - `<` / `>`: roll right / left by angle `alpha`
+ - `|`: reverse vector direction
+ - `[` / `]`: push / pop current tree state
+
+Usage
+-----
+
+```js
+var lsys = new LSystem('F', { 'F' : 'F-F+FF' });
+var tree = lsys.iterate(2);
+console.log(tree)  // F-F+FF-F-F+FF+F-F+FFF-F+FF
+```