docs(home): update powertools definition

Signed-off-by: Heitor Lessa <[email protected]>

Author: heitorlessa

Diff for: README.md

@@ -5,7 +5,7 @@
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-A suite of Python utilities for AWS Lambda functions to ease adopting best practices such as tracing, structured logging, custom metrics, [and more](https://awslabs.github.io/aws-lambda-powertools-python/latest/#features).
+Powertools is a developer toolkit to implement Serverless [best practices and increase developer velocity](https://awslabs.github.io/aws-lambda-powertools-python/latest/#features).
 
 > Also available in [Java](https://github.com/awslabs/aws-lambda-powertools-java), [Typescript](https://github.com/awslabs/aws-lambda-powertools-typescript), and [.NET](https://awslabs.github.io/aws-lambda-powertools-dotnet/).