Added link to privacy policy as required by Facebook

[cytadela8]

This change is 

[cytadela8]

[codecov[bot]]

Codecov Report

Base: 84.78% // Head: 84.78% // No change to project coverage :thumbsup:

Coverage data is based on head (41871d7) compared to base (c8c5e0e). Patch has no changes to coverable lines.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #634 +/- ## ======================================= Coverage 84.78% 84.78% ======================================= Files 15 15 Lines 2445 2445 ======================================= Hits 2073 2073 Misses 372 372 ``` Help us with your feedback. Take ten seconds to tell us [how you rate us](https://about.codecov.io/nps?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=warsztatywww). Have a feature suggestion? [Share it here.](https://app.codecov.io/gh/feedback/?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=warsztatywww)

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