Updated release graphics alt text
Updated release graphics alt text

Signed-off-by: Dustin Black <c4b737561a711e07c31fd1e1811f33a5d770e31c@redhat.com>

anoopcs9/glusterweb,gluster/glusterweb,anoopcs9/glusterweb,anoopcs9/glusterweb,gluster/glusterweb,gluster/glusterweb,anoopcs9/glusterweb,gluster/glusterweb