Add run script and basic logger program.

src/index.ts

@@ -1 +1,14 @@
-console.log("Hello, World!");
+import { createLogger, transports, format } from "winston";
+
+const logger = createLogger({
+    transports: [new transports.Console()],
+    format: format.combine(
+      format.colorize(),
+      format.timestamp(),
+      format.printf(({ timestamp, level, message }) => {
+        return `[${timestamp}] ${level}: ${message}`;
+      })
+    ),
+  });
+  
+logger.info("Hello world!");