fix(doc): add file prefix
@@ -7,7 +7,7 @@ Find useful examples about how to expose an Open API specification in a Camel K
Deploy the examples running
```
-kamel run --dev --name greetings --open-api greetings-api.json greetings.groovy
+kamel run --dev --name greetings --open-api file:greetings-api.json greetings.groovy
```
Then you can test by calling the hello endpoint, ie:
