Polish translation

Created by: mdabek

Maintainer(s): @mdabek

Please check out the Translations Contributing Guidelines.

Original translations thread: https://github.com/donnemartin/system-design-primer/issues/28

Interested in helping? Let us know!

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I am working on ##polish## translation of the document on the forked repository (https://github.com/mdabek/system-design-primer).

I have some work done already. Is anyone willing to help?