sth about permission

Hey, I am a guy from China I created a private repository some time ago, and I added two partners to allow them access the program. After some time, I decided to make the program open source, and I set the repository public. But, I found that now, others can only see the page if they log on and has the access property. I don't know why, cuz I have set it public, maybe there are some other settings? I really need ur help. Thx. The url is: https://bitbucket.org/chineking/invertedindex/wiki/Home