Update README.md

Author: alexeygrigorev

README.md

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 * Check [FAQ](https://docs.google.com/document/d/12TlBfhIiKtyBv8RnsoJR6F72bkPDGEvPOItJIxaEzE0/edit) if you have problems
 * If you can't find a solution to your problem in FAQ, ask for help in Slack
 
-### 2022 Cohort
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-- [Leaderboard](https://docs.google.com/spreadsheets/d/e/2PACX-1vRhinTR4Gpxcud-xX0cPBVqboO8RE5gFY7W2dfgfhzECuPFOaCoo9TVWUTxxrSmzvbZY0D-N1vai8RN/pubhtml)
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 ## Overview
 
 ### Objective