updated SQLite to PostgreSQL migration doc's link (#1517)

Author: ritik48

waspc/src/Wasp/Generator/DbGenerator.hs

@@ -60,7 +60,7 @@ genPrismaSchema spec = do
     AS.Db.PostgreSQL -> return ("postgresql", makeEnvVarField databaseUrlEnvVarName)
     AS.Db.SQLite ->
       if AS.isBuild spec
-        then logAndThrowGeneratorError $ GenericGeneratorError "SQLite (a default database) is not supported in production. To build your Wasp app for production, switch to a different database. Switching to PostgreSQL: https://wasp-lang.dev/docs/language/features#migrating-from-sqlite-to-postgresql ."
+        then logAndThrowGeneratorError $ GenericGeneratorError "SQLite (a default database) is not supported in production. To build your Wasp app for production, switch to a different database. Switching to PostgreSQL: https://wasp-lang.dev/docs/data-model/backends#migrating-from-sqlite-to-postgresql ."
         else return ("sqlite", "\"file:./dev.db\"")
 
   let templateData =