fix readme

Author: cctdaniel

README.md

@@ -155,7 +155,7 @@ Finally, in docker extension inside VS Code click right and choose "Attach VS Co
 
 Oracle program upgrades are managed by the Pythian Council multisig. The steps to deploy a new version are:
 
-1. Create a release branch from `main`. This should include binary for both the Pythnet oracle programs (`pyth_oracle_pythnet.so`).
+1. Create a release branch from `main`. This should include binary for the Pythnet oracle program (`pyth_oracle_pythnet.so`).
 2. [Install Solana CLI](https://docs.solana.com/cli/install-solana-cli-tools#use-solanas-install-tool) if not already installed.
 3. Set Solana config for the target network, e.g., devnet: `solana config set --url https://api.devnet.solana.com`.
 4. Execute `solana program write-buffer pyth_oracle_pythnet.so` to obtain the buffer address.