Actualize references

[viralpraxis]

Simply changing http -> https

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Before submitting the PR make sure the following are checked:

• The PR relates to only one subject with a clear title and description in grammatically correct, complete sentences.
• Wrote good commit messages.
• Feature branch is up-to-date with master (if not - rebase it).
• Squashed related commits together.
• Ran bundle exec rake default. It executes all tests and runs RuboCop on its own code.