Minor fix - what pip-packages are required for Python scripts

AlexeyAB

2018-05-06 c9b8bdee1886df5f83973d91c3597c28f99a9e0c

 scripts/log_parser/readme.md

@@ -11,7 +11,7 @@

`python log_parser.py --source-dir ./ --save-dir ./ --log-file test.log --show true`


![plot](https://github.com/Adesun/darknet/blob/log_parser/scripts/log_parser/plot.jpg)