Add translations for project repository's various pages e.g. guides and frontpage

Preliminary checks

• I've checked that there aren't other open issues on the same topic.

Describe the problem requiring a solution

It would be nice if we could have translations of the main page, installation guide etc. in other languages than English, especially the most popular ones like Russian, Polish and French.

I've tried to look up if Github supports such a thing but I haven't found any solution so far. I figured if I create an issue maybe someone who knows more could chime in.

Describe the possible solution

Provide translations for the project's documentations.

Additional info

No response