Added quick start video via git lfs

.gitattributes

@@ -1,6 +1,5 @@
 # Handle text files (note: do not apply text=lf to all as it corrupts binary files such as images)
 * text=auto
-
 # Explicitly set line endings for specific text files
 *.txt text eol=lf
 *.sh text eol=lf
@@ -9,3 +8,4 @@
 *.jsx text eol=lf
 *.ts text eol=lf
 *.tsx text eol=lf
+*.mp4 filter=lfs diff=lfs merge=lfs -text