fix curl command for expire ticket

docs/get_started/tour.mdx

@@ -399,7 +399,7 @@ Then call the `unreserve` handler on the `TicketObject`.
 Once you have added this to the code, call the `CartObject/expireTicket` handler:
 
 ```shell
-curl localhost:8080/CartObject/Mary/expireTicket-H 'content-type: application/json' -d '"seat2B"'
+curl localhost:8080/CartObject/Mary/expireTicket -H 'content-type: application/json' -d '"seat2B"'
 ```
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