Update .NET README (#1893)

- Link to the latest NuGet package.
- Fix some grammar and casing.

Author: martincostello

dotnet/README.md

@@ -1,15 +1,15 @@
 # OpenTelemetry Lambda .NET
 
-Nuget package for running .NET applications on AWS Lambda with OpenTelemetry.
+NuGet package for running .NET applications on AWS Lambda with OpenTelemetry.
 
 ## Provided SDK
 
-[OpenTelemetry Lambda SDK for .NET](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/tree/main/src/OpenTelemetry.Instrumentation.AWSLambda) includes tracing APIs to instrument Lambda handler and is provided on [Nuget](https://www.nuget.org/packages/OpenTelemetry.Instrumentation.AWSLambda/1.1.0-beta2). Follow the instructions on [user guide](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#instrumentation) to manually instrument the Lambda handler.
-For other instrumentations, such as http, you'll need to include the corresponding library instrumentation from the [instrumentation project](https://github.com/open-telemetry/opentelemetry-dotnet) and modify your code to initialize it in your function.
+[OpenTelemetry Lambda SDK for .NET](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/tree/main/src/OpenTelemetry.Instrumentation.AWSLambda) includes tracing APIs to instrument Lambda handlers and is provided on [NuGet](https://www.nuget.org/packages/OpenTelemetry.Instrumentation.AWSLambda). Follow the instructions in the [user guide](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#instrumentation) to manually instrument the Lambda handler.
+For other instrumentations, such as HTTP, you'll need to include the corresponding library instrumentation from the [instrumentation project](https://github.com/open-telemetry/opentelemetry-dotnet) and modify your code to initialize it in your function.
 
 ## Provided Layer
 
-[OpenTelemetry Lambda Layer for Collector](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#lambda-layer) includes OpenTelemetry Collector for Lambda components. Follow [user guide](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#enable-tracing) to apply this layer to your Lambda handler that's already been instrumented with OpenTelemetry Lambda .NET SDK to enable end-to-end tracing.
+[OpenTelemetry Lambda Layer for Collector](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#lambda-layer) includes OpenTelemetry Collector for Lambda components. Follow the [user guide](https://aws-otel.github.io/docs/getting-started/lambda/lambda-dotnet#enable-tracing) to apply this layer to your Lambda handler that's already been instrumented with the OpenTelemetry Lambda .NET SDK to enable end-to-end tracing.
 
 ## Sample application