Update README and Language files

Update README to include `bugsnag`. Corrected the use of image and corrected the refill distance help text in the language file.
Sooooo... If we're going whole-hog into bugsnag, the actual fix for this is to add bugsnag to the dependencies in the package.json, and since it's not in there, you can totally blame me for that! :cat2: 

Fix it on your fork, remove this line, and update the PR :)