chore(docs): fix link to docker (#7395)

Please read [contributing guidelines](CONTRIBUTING.md) and remove this
line.

docs/docs/guides/smart_contracts/testing_contracts/index.md

@@ -36,7 +36,7 @@ So to summarize:
 
 In order to use the TXE, it must be running on a known address. By default, TXE runs at `http://localhost:8080`. So you can run  contracts tests with:
 
-`aztec-nargo test --oracle-resolver http://localhost:8080`
+`aztec-nargo test --oracle-resolver http://host.docker.internal:8080`
 
 :::warning
 Since TXE tests are written in Noir and executed with `aztec-nargo`, they all run in parallel. This also means every test creates their own isolated environment, so state modifications are local to each one of them.