Provide additional docs about pre-commit hooks usage

[MaxymVlasov]

It's like guide for newcomers, that should cover "first week/month usage issues and questions"

• links to common useful practices
• tips about pre-commit
• tips about git and git hooks
  • note about that pre-commit work only for files known by git
• tips about automation workflows
• tips about tools used inside hooks
  • how to disable check
  • on what cases check can be desabled and how document it

Etc.

Can be separated to subtasks