Added readme.
Added readme.

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