The domain of the previous project site seems to no longer be registered (or in control of the project maintainers). I added a link to the documentation from the GitHub Pages source rendered as HTML by the online tool GitHub & BitBucket HTML Preview.
Unless the previous project site domain will be re-registered (or wrested back into control by the project maintainers), the reference to it should probably be removed entirely.
The domain of the previous project site seems to no longer be registered (or in control of the project maintainers). I added a link to the documentation from the GitHub Pages source rendered as HTML by the online tool GitHub & BitBucket HTML Preview.
Unless the previous project site domain will be re-registered (or wrested back into control by the project maintainers), the reference to it should probably be removed entirely.