Add table of contents and intro to file HACKING

HACKING

@@ -1,6 +1,23 @@
 This file is licensed under the terms of the expat license, see the file EXPAT.
 
-+++ Hacking guide for Midori +++
++ Hacking guide for Midori +
+
+- How to contribute
+- Coding style
+- Source files in the project
+- Examplary source code
+
++++ How to contribute +++
+
+There are several ways to contribute to the project:
+
+For translating, have a look at the file TRANSLATE.
+
+For helping with testing and triaging bug reports, you should registers with the bug tracker at http://www.twotoasts.de/bugs and join #midori on irc.freenode.net where a lot of problems are discussed. You can start right away by trying to reproduce bug reports and comment with your findings.
+
+If you are interested in contributing code, there are a few options. You can join #midori to discuss a particular problem you would like to look into, or a feature you would want to implement. Opening a bug report or feature request if there isn't already one is the next step. To attract some attention, if you attached a patch or have questions, ask in #midori.
+
++++ Coding style +++
 
 Indentation is 4 spaces, no tabs, preferrably at 80 to 120 columns per line to
 avoid automated line-breaks. Trailing whitespace is not desirable.