chore(README): add crowdl.io to the list of editors (#1183)

Author: ocombe

README.md

@@ -535,6 +535,7 @@ If you want to reload the translations and see the update on all your components
 ## Editors
 - [BabelEdit](https://www.codeandweb.com/babeledit) — translation editor for JSON files
 - [Translation Manager](https://translation-manager-86c3d.firebaseapp.com/) — Progressive web-app, translation editor for JSON files
+- [Crowdl.io](https://crowdl.io) — Free translation management and crowd-translations tool with support for JSON files
 
 ### Extensions