added table of contents

README.md

@@ -55,6 +55,22 @@ mind for now.
 You can generate a PDF or an HTML copy of this guide using
 [Transmuter](https://github.com/TechnoGate/transmuter).
 
+## Table of Contents
+
+* [Source Code Layout](#source-code-layout)
+* [Syntax](#syntax)
+* [Naming](#naming)
+* [Comments](#comments)
+* [Annotations](#annotations)
+* [Classes](#classes)
+* [Exceptions](#exceptions)
+* [Collections](#collections)
+* [Strings](#strings)
+* [Regular Expressions](#regular-expressions)
+* [Percent Literals](#percent-literals)
+* [Metaprogramming](#metaprogramming)
+* [Misc](#misc)
+
 ## Source Code Layout
 
 > Nearly everybody is convinced that every style but their own is