Update README.md

Author: yaanakbr

README.md

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 # Hyperliquid API — Examples
 
 Clone-and-run examples for the [Hyperliquid API](https://hyperliquidapi.com) builder API.
-Trade perps, spot, and HIP-3 markets on Hyperliquid through a single JSON-RPC endpoint.
+Trade perps, spot, and HIP-3 markets on Hyperliquid via a single REST API endpoint.
 Your private key never leaves your machine — you sign locally, the service forwards to Hyperliquid.
 
 ## Prerequisites
@@ -106,4 +106,4 @@ llms.txt: **https://hyperliquidapi.com/llms.txt**
 
 ## Disclaimer
 
-Hyperliquid API & hyperliquidapi.com are not affiliated with Hyperliquid Corp or Hyper Foundation.
+Hyperliquid API & hyperliquidapi.com are not affiliated with Hyperliquid Corp or Hyper Foundation.