Update README.md

Author: august-andersen

README.md

@@ -48,7 +48,7 @@ uv pip install programsmith
 Ensure Docker is running and at least one model credential is set:
 
 ```bash
-export CLAUDE_CODE_OAUTH_TOKEN=<token>   # preferred (run `claude setup-token`)
+export CLAUDE_CODE_OAUTH_TOKEN=<token>   # cheaper (run `claude setup-token` in your CLI)
 # or
 export ANTHROPIC_API_KEY=<api-key>
 ```