Merge pull request airbnb#533 from ecosia/update-inthewild

Add Ecosia to "In the Wild" section.

Author: hshoff

README.md

@@ -2136,6 +2136,7 @@ Other Style Guides
   - **Compass Learning**: [compasslearning/javascript-style-guide](https://github.com/compasslearning/javascript-style-guide)
   - **DailyMotion**: [dailymotion/javascript](https://github.com/dailymotion/javascript)
   - **Digitpaint** [digitpaint/javascript](https://github.com/digitpaint/javascript)
+  - **Ecosia**: [ecosia/javascript](https://github.com/ecosia/javascript)
   - **Evernote**: [evernote/javascript-style-guide](https://github.com/evernote/javascript-style-guide)
   - **ExactTarget**: [ExactTarget/javascript](https://github.com/ExactTarget/javascript)
   - **Expensify** [Expensify/Style-Guide](https://github.com/Expensify/Style-Guide/blob/master/javascript.md)