Small typos in getting-started.md and remove double never miss data
#3039
| Job | Run time |
|---|---|
| 56s | |
| 1m 13s | |
| 2m 9s |
never miss data
#3039
| Job | Run time |
|---|---|
| 56s | |
| 1m 13s | |
| 2m 9s |