Fix badge url of Coveralls.
Fix badge url of Coveralls.

lodge/lodge,origami/lounge,koyashy/lodge,lodge/lodge,origami/lounge,j138/lodge,koyashy/lodge,tanaka-yoshi10/lodge,tanaka-yoshi10/lodge,j138/lodge-docker,lodge/lodge,lodge/lodge,koyashy/lodge,fzawa/sup-lodge,tanaka-yoshi10/lodge,j138/lodge-docker,tanaka-yoshi10/lodge,fzawa/sup-lodge,j138/lodge-docker,j138/lodge,fzawa/sup-lodge,koyashy/lodge,origami/lounge,j138/lodge-docker,fzawa/sup-lodge,origami/lounge,j138/lodge,j138/lodge