Comment 0 for bug 1591571

The link given in the Jessyink install/update extension (for more info) points to
code.google.com/p/jessyink, which gives a 404 error.

This repo here at least still exists:
https://code.launchpad.net/jessyink, but doesn't appear to be very actively maintained.

I suggest to either remove the link, or to link to some page where more info can be found about the extension.