phrasing website notification

Author: abose

docs/siteNotifications/en.json

@@ -2,11 +2,11 @@
   "all": {},
   "mac": {
     "titleHTML": "Critical Update Available",
-    "messageHTML": "Having trouble starting Phoenix Code on macOS? Download the app to resolve these issues!"
+    "messageHTML": "Having trouble starting Phoenix Code on macOS? Download now to resolve these issues!"
   },
   "linux": {
     "titleHTML": "Critical Update Available",
-    "messageHTML": "Having trouble starting Phoenix Code on Linux? Download the app to resolve these issues!"
+    "messageHTML": "Having trouble starting Phoenix Code on Linux? Download now to resolve these issues!"
   },
   "win": {},
   "android": {},