Update README.md

README.md

@@ -137,7 +137,7 @@ Alpaca supports cash and margin accounts.
 
 The following table describes the available order types for each asset class that our Alpaca integration supports.
 
-| Order Type / Security Type | Equity | Equity Options | Futures |
+| Order Type / Security Type | Equity | Equity Options | Crypto  |
 |:--------------------------:|:------:|:--------------:|:-------:|
 |         MarketOrder        |   Yes  |       Yes      |   Yes   |
 |         LimitOrder         |   Yes  |       Yes      |   Yes   |