Add 'Commercial Support' section to readme

README.rst

@@ -55,6 +55,11 @@ Need Support?
 Ask your questions on our `Wagtail support group <https://groups.google.com/forum/#!forum/wagtail>`_.
 
 
+Commercial Support
+~~~~~~~~~~~~~~~~~~
+Wagtail is sponsored by `Torchbox <https://torchbox.com/>`_. If you need help implementing Wagtail, please contact us: hello@torchbox.com.
+
+
 Compatibility
 ~~~~~~~~~~~~~
 Wagtail supports Django 1.7.1+ on Python 2.7, 3.3 and 3.4.