Update 2020-05-04_08-00-00_sample-marlowe-smart-contracts-en.md

resources/content/articles/en/2020-05-04_08-00-00_sample-marlowe-smart-contracts-en.md

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 ## Sample Marlowe smart contracts
 
-The online tutorial has the example of an Escrow contract [section 3](https://alpha.marlowe.iohkdev.io/doc/marlowe/tutorials/index.html#escrow-ex) and ACTUS contracts [section 13](https://alpha.marlowe.iohkdev.io/doc/marlowe/tutorials/index.html#actus-marlowe).
+The online tutorial has the example of an [Escrow contract](https://play.marlowe-finance.io/doc/marlowe/tutorials/escrow-ex.html) and [ACTUS contracts](https://play.marlowe-finance.io/doc/marlowe/tutorials/actus-marlowe.html).
 
 The Marlowe Playground comes with smart contracts in Marlowe (in the _Simulation_ tab) and embedded in Haskell (in the _Haskell editor_ tab).