Fix zero-downtime-schema-migrations-postgresql.mdx

zero-downtime-schema-migrations-postgresql.mdx

@@ -108,7 +108,7 @@ If you're interested in learning more about why we built this solution, how it's
 
 ## Coming soon to Xata
 
-We are in the process of integrating pgroll directly to Xata. This will open the door to [many more migrations](https://github.com/xataio/pgroll/tree/main/docs#operations-reference) that can be rolled out in production, with zero downtime.
+We are in the process of integrating pgroll directly to Xata. This will open the door to [many more migrations](https://github.com/xataio/pgroll/blob/main/docs/operations-reference.md) that can be rolled out in production, with zero downtime.
 
 ![Tools for schema migrations](/images/zdt-schema-xata.png)