feat(examples): add hello_world, update r/demo/event (#3130)
#956
| Job | Run time |
|---|---|
| 1m 22s | |
| 7s | |
| 1m 29s |
r/demo/event (#3130)
#956
| Job | Run time |
|---|---|
| 1m 22s | |
| 7s | |
| 1m 29s |