Fix outdated link. 4563c663db261e1d02c029f39d2d80aafe20b2ac renamed this file resulting in the link to it on the README being out of date, this PR updates the readme to point to the proper location.
Fix outdated link.
4563c663db261e1d02c029f39d2d80aafe20b2ac renamed this file resulting in the link to it on the README being out of date, this PR updates the readme to point to the proper location.

PiperOrigin-RevId: 193136835

tensorflow/probability,tensorflow/probability