Add Digitpaint to list of organisations using this style guide

Author: Flurin Egger

README.md

@@ -1474,6 +1474,7 @@
   - **Airbnb**: [airbnb/javascript](https://github.com/airbnb/javascript)
   - **American Insitutes for Research**: [AIRAST/javascript](https://github.com/AIRAST/javascript)
   - **Compass Learning**: [compasslearning/javascript-style-guide](https://github.com/compasslearning/javascript-style-guide)
+  - **Digitpaint** [digitpaint/javascript](https://github.com/digitpaint/javascript)
   - **ExactTarget**: [ExactTarget/javascript](https://github.com/ExactTarget/javascript)
   - **Gawker Media**: [gawkermedia/javascript](https://github.com/gawkermedia/javascript)
   - **GeneralElectric**: [GeneralElectric/javascript](https://github.com/GeneralElectric/javascript)