docs: add dev.to technical companion link to Wix migration post

Author: alexandramartinez

src/content/blog/migrating-a-blog-from-wix-to-astro.mdx

@@ -108,4 +108,6 @@ It does the honest, lossless part, tells you where the gaps are, and is explicit
 > [!BUTTON]
 > [Go to the GitHub repo](https://github.com/alexandramartinez/wix-to-astro)
 
+If you want the engineering underneath it (the tokenizer design, the Wix-specific paper cuts, and a zero-width regex that quietly pegged a CPU core), I wrote a deeper technical version on [dev.to](https://dev.to/devalexmartinez/migrating-a-wix-blog-to-markdown-the-server-html-trap-and-the-zero-width-regex-that-pegged-my-cpu-1lhc).
+
 If you hit a Wix quirk I didn't cover, I'd genuinely like to hear about it. Come find me on [YouTube](https://www.youtube.com/@prostdev) or wherever you found this post, and happy migrating. :-)