fix: typos in documentation files

[maximevtush]

No description provided.

[google-cla]

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[yuvaltassa]

Thanks!

Can you do the CLA thing?
Or let me know if you can't be bothered, I'll just copy your fixes 🙂

[maximevtush]

Thanks!

Can you do the CLA thing? Or let me know if you can't be bothered, I'll just copy your fixes 🙂

CLA signed