docs(home): update powertools definition

Author: heitorlessa

README.md

@@ -2,8 +2,7 @@
 
 ![aws provider](https://img.shields.io/badge/provider-AWS-orange?logo=amazon-aws&color=ff9900) ![Build status](https://github.com/awslabs/aws-lambda-powertools-java/actions/workflows/build.yml/badge.svg) ![Maven Central](https://img.shields.io/maven-central/v/software.amazon.lambda/powertools-parent)
 
-A suite of utilities for AWS Lambda Functions that makes tracing with AWS X-Ray, structured logging and creating custom metrics asynchronously easier.
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+Powertools is a developer toolkit to implement Serverless best practices and increase developer velocity.
 
 > Also available in [Python](https://github.com/awslabs/aws-lambda-powertools-python), [TypeScript](https://github.com/awslabs/aws-lambda-powertools-typescript), and [.NET](https://github.com/awslabs/aws-lambda-powertools-dotnet).