remove oldest php versions

Deprecated option to import (#6)

Co-authored-by: nastyanwdles <anastasiya.lap@umbrellio.biz>

add php config for ecs version >9 (#3)

Co-authored-by: Evgen <evgeniy.kz@umbrelio.biz>

update composer

added support php 8.0

fix path to rules

update easy-coding-standard

Update paths to config sets

Update ECS lib

[README] Minor updates (#1)

- beautification
- license part
- contributing part
- code colorization
- logo