chore: update readme for introduction (#11)

Co-authored-by: xiaoweii <xiaoweii@amazom.com>

Author: zhu-xiaowei

README.md

@@ -2,9 +2,9 @@
 
 ## Introduction
 
-Clickstream Swift SDK can help you easily report in-app events on iOS. After the event is reported, statistics and analysis of specific scenario data can be completed on AWS Clickstream solution.
+Clickstream Swift SDK can help you easily collect and report in-app events from iOS devices to AWS. This SDK is part of an AWS solution - Clickstream Analytics on AWS, which provisions data pipeline to ingest and process event data into AWS services such as S3, Redshift.
 
-The SDK relies on the Amplify for Swift Core Library and is developed according to the Amplify Swift SDK plug-in specification. In addition to this, we've added commonly used preset event statistics to make it easier to use.
+The SDK relies on the Amplify for Swift Core Library and is developed according to the Amplify Swift SDK plug-in specification. In addition, we've added features that automatically collect common user events and attributes (e.g., screen view, first open) to simplify data collection for users.
 
 ### Platform Support
 
@@ -24,7 +24,7 @@ We use **Swift Package Manager** to distribute Clickstream Swift SDK, open your
 
 ![](images/add_package.png)
 
-Enter the Clickstream Library for Swift GitHub repo URL (`https://github.com/awslabs/clickstream-swift`) into the search bar, You'll see the Clickstream Library for Swift repository rules for which version of Clickstream you want Swift Package Manager to install. Choose **Up to Next Major Version**, then click **Add Package**, make the Clickstream product checked as default, and click **Add Package** again.
+Enter the Clickstream Library for Swift GitHub repo URL (`https://github.com/awslabs/clickstream-swift`) into the search bar, you'll see the Clickstream Library for Swift repository rules for which version of Clickstream you want Swift Package Manager to install. Choose **Up to Next Major Version**, then click **Add Package**, make the Clickstream product checked as default, and click **Add Package** again.
 
 ![](images/add_package_url.png)