chore: wording

Author: psofiterol

docs/blind-computer/build/network-api-access.mdx

@@ -18,7 +18,7 @@ This guide walks you through the process of creating an API key.
 ></iframe> */}
 
 
-## Prerequisite
+## Prerequisites
 You must have acquired some Sepolia ETH + NIL via this [faucet guide.](/community/guides/testnet-faucet)
 
 ## Create an API Key