chore: move old AC to positive side, reword, so it can be referenced …

…in tests

Signed-off-by: Elias Van Ootegem <elias@vega.xyz>

protocol/0014-ORDT-order_types.md

@@ -392,6 +392,7 @@ In Spot market, for multiple iceberg orders submitted as a batch of orders with
 - All stop orders for a specific party can be cancelled by a single stop order cancellation. (<a name="0014-ORDT-072" href="#0014-ORDT-072">0014-ORDT-072</a>). For spot products (<a name="0014-ORDT-155" href="#0014-ORDT-155">0014-ORDT-155</a>)
 - All stop orders for a specific party for a specific market can be cancelled by a single stop order cancellation. (<a name="0014-ORDT-073" href="#0014-ORDT-073">0014-ORDT-073</a>). For spot products (<a name="0014-ORDT-156" href="#0014-ORDT-156">0014-ORDT-156</a>)
 - If a stop order is placed with a position_fraction equal to 0.5 and the position size is 5 then the rounding should be equal to 3 (<a name="0014-ORDT-138" href="#0014-ORDT-138">0014-ORDT-138</a>)
+- A party with a long position can enter a buy stop order, and a party with a short position can enter a sell stop order increasing their position. (<a name="0014-ORDT-137" href="#0014-ORDT-137">0014-ORDT-137</a>)
 
 
 ## Stop Orders - Negative Cases