Add reproduced raw-video dance example

.gitattributes

@@ -35,3 +35,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 examples/Sequence_01_6.mp4 filter=lfs diff=lfs merge=lfs -text
 examples/beat_search_2_audio.mp3 filter=lfs diff=lfs merge=lfs -text
+examples/generated_demo.mp4 filter=lfs diff=lfs merge=lfs -text

examples/generated_demo.mp4

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a299a49793639bcdbc3836bf0feb8325bf25657483a6c2af112df510be8a40a9
+size 9250444