Merge pull request #913 from jitsi/adjust-feedback-question

Adjusts feedback dialog question.

lang/main.json

@@ -252,7 +252,7 @@
         "firefoxExtensionPrompt": "You need to install a Firefox extension in order to use screen sharing. Please try again after you <a href='__url__'>get it from here</a>!",
         "rateExperience": "Please rate your meeting experience.",
         "feedbackHelp": "Your feedback will help us to improve our video experience.",
-        "feedbackQuestion": "How was your call?",
+        "feedbackQuestion": "Tell us about your call!",
         "thankYou": "Thank you for using __appName__!",
         "sorryFeedback": "We're sorry to hear that. Would you like to tell us more?",
         "liveStreaming": "Live Streaming",