fix: third party headline

2-third-party/README.md

@@ -1,4 +1,4 @@
-# Modules
+# Third Party
 
 In the first lab, we bootstrapped Terraform and got familiar with the very basics. Let’s extend the stack and add a simple *Hello World API*. We want to use [Amazon API Gateway](https://aws.amazon.com/api-gateway/) and [AWS Lambda](https://aws.amazon.com/lambda/) (with Node.js) for a serverless API returning a hello world statement.
 

README.md

@@ -26,8 +26,8 @@ Before jumping to the first lab, please double-check the list and prepare your c
 
 We recommend you walk through the labs step by step and follow the instructions. Feel free to further extend the stack, play around with resources and dive deeper. Have fun ✌️
 
-1. [Getting started](./1-getting-started): Get started with Terraform, deploy some AWS resources, and create a remote backend for the Terraform state
-2. [Third party](./2-third-party/): Use a third-party *module* to easily build and deploy an AWS Lambda function
+1. [Getting Started](./1-getting-started): Get started with Terraform, deploy some AWS resources, and create a remote backend for the Terraform state
+2. [Third Party](./2-third-party/): Use a third-party *module* to easily build and deploy an AWS Lambda function
 3. [Module Composition](./3-module-composition/): Improve the growing codebase by introducing custom modules and module composition
 4. [Multi Environment](./4-multi-environment/): Make the Terraform configuration ready for a multi-environment setup
 5. [Parameterization](./5-parameterization/): Implement a feature flag and enable the new feature only on staging