No Crypto Universe Selection Framework docs

[DerekMelchin]

Expected Behavior

In Writing Algorithms > Algorithm Framework > Universe Selection, we show how to create framework universe selection models for Crypto.
Each of the framework example algorithms in the dataset market that trade crypto should use this model.

Actual Behavior

We don't yet show this information. Waiting on QuantConnect/Lean.DataSource.CryptoCoarseFundamentalUniverse#8

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