Added Wayback Machine links

After realising that I’ve been blogging for nearly 19 years, and that I have lot of old content with many broken links, I decided to add support for Wayback Machine links.

The Wayback Machine (part of the Internet Archive) archives web pages for posterity, and importantly, tries to archive many versions over time.

At the bottom of each my posts is now a section that links to the archived version of the page, as of the date of the post. This will attempt to show the latest archived version of the page before that date.

In practice many pages did not get archived, or the archived version may not contain the exact content on the day I wrote the post, but it is better than nothing.

To keep this service alive (along with other activities of the Internet Archive), please consider donating.