Links to X timelines

The post gave an update about some improvements to the website and included information about using Nitter to view the X (formerly Twitter) timelines. Unfortunately, it appears that this solution will not last for much longer. Nitter uses some older technology which relies on certificates that are gradually coming to the end of their lives. The orginal Nitter servers became defunct but I manged to find a way of identifying some that were still working so I switched across to one of these on 5th February. That now is not working so the links have been updated again but now there are only five options left, there had been 19 two weeks ago. I expect over the next couple of weeks, we will lose these too.