Add documentation for string formats; fix at-identifier format
#399
| Job | Run time |
|---|---|
| 35s | |
| 1m 29s | |
| 1m 26s | |
| 3m 30s |
at-identifier format
#399
| Job | Run time |
|---|---|
| 35s | |
| 1m 29s | |
| 1m 26s | |
| 3m 30s |