Minor: improve ChunkedReader docs
#8016
| Job | Run time |
|---|---|
| 2m 15s | |
| 4m 20s | |
| 2m 1s | |
| 2m 2s | |
| 1m 40s | |
| 12m 18s |
ChunkedReader docs
#8016
| Job | Run time |
|---|---|
| 2m 15s | |
| 4m 20s | |
| 2m 1s | |
| 2m 2s | |
| 1m 40s | |
| 12m 18s |