Update README.md

Fixed URL for transifex

README.md

@@ -115,7 +115,7 @@ So if you'd like to be part of the project, please check out the [roadmap](https
 
 ### Translations
 
-We are experimenting [transifex](https://www.transifex.com/organization/rocketchat/dashboard/rocketchat). If you want to help, try it out, let us know and please give us some feedback about the experience. 
+We are experimenting [transifex](https://www.transifex.com/organization/rocketchat). If you want to help, try it out, let us know and please give us some feedback about the experience. 
 
 <img border="0" src="https://www.transifex.com/projects/p/rocketchat/resource/eni18njson/chart/image_png"/>