update_All_equal

[ze-dev]

Description

Resolves #(issue number)

What does your PR belong to?

• [ ] Website
• [ ] Snippets
• [ ] General / Things regarding the repository (like CI Integration)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] Enhancement (non-breaking improvement of a snippet)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have checked that the changes are working properly
• [ ] I have checked that there isn't any PR doing the same
• [ ] I have read the CONTRIBUTING document.

[ze-dev]

Code "return lst[1:] == lst[:-1]" will compare two lists:
1st example: [2, 3, 4, 5, 6] and [1, 2, 3, 4, 5] because lst[1:] = [2, 3, 4, 5, 6] and lst[:-1] = [1, 2, 3, 4, 5]
2nd example: [1, 1, 1] and [1, 1, 1] We have to compare current and next elements of list in cycle (for i in lst), while result is True.

[ze-dev]

Sorry for my changes in Readme.md, I'll be more attentive.