[Issues] Updated LT0030 issue to show that LottieGen actually supports linked image files (#473)

Author: aborziak-ms

source/Issues/LT0030.md

@@ -4,10 +4,12 @@
 # Lottie-Windows Warning LT0030
 
 The Lottie file contains a reference to an image file at the given file path. Currently
-Lottie-Windows only supports images that are embedded in the Lottie file.
+LottieViewer only supports images that are embedded in the Lottie file. 
+Animations generated by LottieGen support linked image files, you just need to put the 
+image to the `/Assets/LottieLinkedBitmap/{linked_image_path}` in your project.
 
 ## Remarks
-Lottie files that reference images in other files are not currently supported by Lottie-Windows.
+Lottie files that reference images in other files are not currently supported by LottieViewer.
 
 If support for image files is important for your scenario please provide feedback
 by raising it as an issue [here](https://github.com/windows-toolkit/Lottie-Windows/issues).