docs: perps short

Author: spacesailor24

docs/ability/official-abilities/hyperliquid/perp-trading/long.mdx

@@ -79,7 +79,7 @@ For the `perpLong` action, the `precheck` function will validate the following:
          */
         reduceOnly?: boolean;
         /**
-         * The order type for the buy order (optional).
+         * The order type for the long order (optional).
          * You may specify either a limit or market order using the form:
          *   { type: "limit", tif: "Gtc" | "Ioc" | "Alo" }
          *   or
@@ -251,7 +251,7 @@ For the `perpLong` action, the `execute` function will:
          */
         reduceOnly?: boolean;
         /**
-         * The order type for the buy order (optional).
+         * The order type for the long order (optional).
          * You may specify either a limit or market order using the form:
          *   { type: "limit", tif: "Gtc" | "Ioc" | "Alo" }
          *   or