chore: add proper import for logging (#369)

Author: kneekey23

README.md

@@ -138,11 +138,14 @@ Try some other calls?  Help us better understand what you think the most critica
 ## Logging
 The AWS SDK for Swift uses SwiftLog for high performant logging.  Many of our calls are issued to the `debug` level of output, which are disabled in the console by default.  To see debug output to your console, you can add the following code to your application in a place where you know that the code will be called once and only once:
 ```swift
+import ClientRuntime
 SDKLoggingSystem.initialize(logLevel: .debug)
 ```
 
 Alternatively, if you need finer grain control of instances of SwiftLog, you can call `SDKLoggingSystem.add` to control specific instances of the log handler.  For example:
 ```swift
+import ClientRuntime
+
 SDKLoggingSystem.add(logHandlerFactory: S3ClientLogHandlerFactory(logLevel: .debug))
 SDKLoggingSystem.add(logHandlerFactory: CRTClientEngineLogHandlerFactory(logLevel: .info))
 SDKLoggingSystem.initialize()