v9: Update readme

Improve LMP formula (#76)

```
ELO   | 19.87 +- 9.95 (95%)
SPRT  | 10.0+0.1s Threads=1 Hash=16MB
LLR   | 2.95 (-2.94, 2.94) [0.00, 5.00]
Games | N: 2906 W: 983 L: 817 D: 1106
```
Bench: 7280905

Update version -> Bit-Genie 6

Add king-safety evaluation (#21)

Co-authored-by: lucametehau <31002793+lucametehau@users.noreply.github.com>

Bench: 59118225

Make version 4

Update version

update version number

update version

remove_clean