fix: duplicate features content

Author: heitorlessa

docs/content/index.mdx

@@ -24,13 +24,6 @@ Powertools is available in PyPi. You can use your favourite dependency managemen
 ```bash:title=hello_world.sh
 sam init --location https://github.com/aws-samples/cookiecutter-aws-sam-python
 ```
-* [Tracing](./core/tracer) - Decorators and utilities to trace Lambda function handlers, and both synchronous and asynchronous functions
-* [Logging](./core/logger) - Structured logging made easier, and decorator to enrich structured logging with key Lambda context details
-* [Metrics](./core/metrics) - Custom Metrics created asynchronously via CloudWatch Embedded Metric Format (EMF)
-* [Bring your own middleware](./utilities/middleware_factory) - Decorator factory to create your own middleware to run logic before, and after each Lambda invocation
-* [Parameters utility](./utilities/parameters) - Retrieve parameter values from AWS Systems Manager Parameter Store, AWS Secrets Manager, or Amazon DynamoDB, and cache them for a specific amount of time
-* [Batch utility](./utilities/batch) - Batch processing for AWS SQS, handles partial failure.
-* [Event source data classes utility](./utilities/data_classes) - Data classes describing the schema of common Lambda event triggers.
 
 ### Lambda Layer
 
@@ -60,9 +53,9 @@ This will add a nested app stack with an output parameter `LayerVersionArn`, tha
 
 You can fetch the available versions via the API with:
 
-  ```bash
- aws serverlessrepo list-application-versions --application-id arn:aws:serverlessrepo:eu-west-1:057560766410:applications/aws-lambda-powertools-python-layer
- ```
+```bash
+aws serverlessrepo list-application-versions --application-id arn:aws:serverlessrepo:eu-west-1:057560766410:applications/aws-lambda-powertools-python-layer
+```
 
 ## Features
 
@@ -72,9 +65,12 @@ Utility | Description
 [Logging](./core/logger) | Structured logging made easier, and decorator to enrich structured logging with key Lambda context details
 [Metrics](./core/metrics) | Custom Metrics created asynchronously via CloudWatch Embedded Metric Format (EMF)
 [Bring your own middleware](.//utilities/middleware_factory) | Decorator factory to create your own middleware to run logic before, and after each Lambda invocation
-[Parameters utility](./utilities/parameters) | Retrieve parameter values from AWS Systems Manager Parameter Store, AWS Secrets Manager, or Amazon DynamoDB, and cache them for a specific amount of time
-[Typing utility](./utilities/typing) | Static typing classes to speedup development in your IDE
-[Event source data classes](./utilities/data_classes) - Batch processing for AWS SQS, handles partial failure.
+[Parameters](./utilities/parameters) | Retrieve parameter values from AWS Systems Manager Parameter Store, AWS Secrets Manager, or Amazon DynamoDB, and cache them for a specific amount of time
+[Typing](./utilities/typing) | Static typing classes to speedup development in your IDE
+[Batch](./utilities/batch) | Handle partial failures for AWS SQS batch processing
+[Validation](./utilities/validation) | JSON Schema validator for inbound events and responses
+[Event source data classes](./utilities/data_classes) | Data classes describing the schema of common Lambda event triggers
+
 
 ## Environment variables