docs/getting-started: fix typo

[Jinghao: Small change on the commit title format.]

Signed-off-by: Dan Williams <[email protected]>
Signed-off-by: Jinghao Jia <[email protected]>

Author: djwillia

docs/getting-started.md

@@ -93,7 +93,7 @@ Inside the VM:
 ```bash
 cd ../samples/hello
 ./loader &
-./event_trigger
+./event-trigger
 ```
 
 The following output should be printed out: