Add TOC to README.md

README.md

@@ -11,6 +11,13 @@ The `hashicorp/setup-terraform` action is a JavaScript action that sets up Terra
 
 After you've used the action, subsequent steps in the same job can run arbitrary Terraform commands using [the GitHub Actions `run` syntax](https://help.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idstepsrun). This allows most Terraform commands to work exactly like they do on your local command line.
 
+- [Usage](#usage)
+- [Inputs](#inputs)
+- [Outputs](#outputs)
+- [License](#license)
+- [Code of Conduct](#code-of-conduct)
+- [Experimental Status](#experimental-status)
+
 ## Usage
 
 This action can be run on `ubuntu-latest`, `windows-latest`, and `macos-latest` GitHub Actions runners. When running on `windows-latest` the shell should be set to Bash.