The syntax used on the pages is [markdown](http://daringfireball.net/projects/markdown/syntax). In order to preview your modifications you can copy and paste the page in this [online preview](http://daringfireball.net/projects/markdown/dingus).
+
+## License
+
+We are in the process of updating the wiki license. By pushing to the repository
+you agree that all of your contributions to the notmuch wiki will be dual
+licensed under:
+
+- [CC-BY-SA-3.0](http://creativecommons.org/licenses/by-sa/3.0/) <img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" />
+
+- [The GNU General Public License](http://www.gnu.org/licenses/gpl.txt), either
+ version 3.0 or at your option any later version.