Add example video JSON configuration file.
Add example video JSON configuration file.

riuson/pannellum,riuson/pannellum,psteph801/psteph801.github.io,psteph801/psteph801.github.io,ywjrg/pannellum,eric-seekas/pannellum,mpetroff/pannellum,psteph801/psteph801.github.io,ywjrg/pannellum,mpetroff/pannellum,Benvii/pannellum,quentinyang/pannellum,eric-seekas/pannellum,quentinyang/pannellum,riuson/pannellum,psteph801/psteph801.github.io,eric-seekas/pannellum,mpetroff/pannellum,riuson/pannellum,quentinyang/pannellum,mpetroff/pannellum,Benvii/pannellum,ywjrg/pannellum,quentinyang/pannellum,ywjrg/pannellum,eric-seekas/pannellum,Benvii/pannellum,Benvii/pannellum