Fix examples

Signed-off-by: Charles d'Avernas <[email protected]>

Author: cdavernas

examples/raise.yaml

@@ -10,4 +10,4 @@ do:
           type: https://serverlessworkflow.io/errors/not-implemented
           status: 500
           title: Not Implemented
-          detail: "The workflow '\($workflow.definition.document.name):\($workflow.definition.document.version)' is a work in progress and cannot be run yet"
+          detail: ${ "The workflow '\( $workflow.definition.document.name ):\( $workflow.definition.document.version )' is a work in progress and cannot be run yet" }