GITBOOK-66: Added notes to order types

learn/order-types.md

@@ -16,3 +16,8 @@ The following list describes the supported order types on Injective:
 * **SELL\_PO (8):** Post-Only Sell. Similar to BUY\_PO, this ensures that your sell order will only add liquidity to the order book and not match with a pre-existing order.
 * **BUY\_ATOMIC (9):** An atomic buy order is a market order that gets executed instantly, bypassing the Frequent Batch Auctions (FBA). It's intended for smart contracts that need to execute a trade instantly. A higher fee is paid defined in the global exchange parameters (currently it is two times the normal trading fee).
 * **SELL\_ATOMIC (10):** An atomic sell order is similar to a BUY\_ATOMIC, and it gets executed instantly at the current market price, bypassing the FBA.
+
+Additional notes:
+
+* **Immediate-Or-Cancel (IOC):** IOC orders are not yet supported. The closest order type is a market order (**BUY**).
+* The worst price for a market order is the "price" parameter.