Suggestion: Automate dead link checking with GitHub Actions

[ikramagix]

Hey @dakotamin,

I think it would be really useful to have automated dead link checking for this list, especially as it grows over time. I noticed there isn’t any automation set up yet for this, so I wanted to suggest a simple workflow to handle it. I’ve just submitted a pull request (#2) that adds a GitHub Actions workflow using lychee-action to check all the links in the README on a regular basis, with a downloadable report available after each run (via artifacts).

I’ve also included an ignore file for false positives (for example, sites that block bots but aren’t actually down). If you’re interested, feel free to merge it or tweak it. 😺