add link to X, to allow people discussing/commenting

Author: andrzejkrzywda

posts/2025-12-30-adding-multitenancy-to-a-ddd-rails-app.md

@@ -265,6 +265,9 @@ This was a successful run, but often it would catch its own hallucinations and t
 
 To summarize - it's still too early to evaluate the solution, I still need to finish some reviews. But it does seem promising to me and I'm happy with the outcome, despite the drawbacks.
 
-The key lesson for me wasn’t multi-tenancy itself, but that strong architectural foundation + mutation testing make large-scale AI-assisted refactors possible.
+The key lesson for me wasn't multi-tenancy itself, but that strong architectural foundation + mutation testing make large-scale AI-assisted refactors possible.
 
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