Adjust usage section (#734)

Author: dmitry-shibanov

README.md

@@ -16,6 +16,69 @@ This action provides the following functionality for GitHub Actions users:
 
 See [action.yml](action.yml)
 
+<!-- start usage -->
+```yaml
+- uses: actions/setup-node@v3
+  with:
+    # Version Spec of the version to use in SemVer notation.
+    # It also emits such aliases as lts, latest, nightly and canary builds
+    # Examples: 12.x, 10.15.1, >=10.15.0, lts/Hydrogen, 16-nightly, latest, node
+    node-version: ''
+
+    # File containing the version Spec of the version to use.  Examples: .nvmrc, .node-version, .tool-versions.
+    # If node-version and node-version-file are both provided the action will use version from node-version. 
+    node-version-file: ''
+
+    # Set this option if you want the action to check for the latest available version 
+    # that satisfies the version spec.
+    # It will only get affect for lts Nodejs versions (12.x, >=10.15.0, lts/Hydrogen). 
+    # Default: false
+    check-latest: false
+
+    # Target architecture for Node to use. Examples: x86, x64. Will use system architecture by default.
+    # Default: ''. The action use system architecture by default 
+    architecture: ''
+
+    # Used to pull node distributions from https://github.com/actions/node-versions. 
+    # Since there's a default, this is typically not supplied by the user. 
+    # When running this action on github.com, the default value is sufficient. 
+    # When running on GHES, you can pass a personal access token for github.com if you are experiencing rate limiting.
+    #
+    # We recommend using a service account with the least permissions necessary. Also
+    # when generating a new PAT, select the least scopes necessary.
+    #
+    # [Learn more about creating and using encrypted secrets](https://help.github.com/en/actions/automating-your-workflow-with-github-actions/creating-and-using-encrypted-secrets)
+    #
+    # Default: ${{ github.server_url == 'https://github.com' && github.token || '' }}
+    token: ''
+
+    # Used to specify a package manager for caching in the default directory. Supported values: npm, yarn, pnpm.
+    # Package manager should be pre-installed
+    # Default: ''
+    cache: ''
+
+    # Used to specify the path to a dependency file: package-lock.json, yarn.lock, etc. 
+    # It will generate hash from the target file for primary key. It works only If cache is specified.  
+    # Supports wildcards or a list of file names for caching multiple dependencies.
+    # Default: ''
+    cache-dependency-path: ''
+
+    # Optional registry to set up for auth. Will set the registry in a project level .npmrc and .yarnrc file, 
+    # and set up auth to read in from env.NODE_AUTH_TOKEN.
+    # Default: ''
+    registry-url: ''
+
+    # Optional scope for authenticating against scoped registries. 
+    # Will fall back to the repository owner when using the GitHub Packages registry (https://npm.pkg.github.com/).
+    # Default: ''
+    scope: ''
+
+    # Set always-auth option in npmrc file.
+    # Default: ''
+    always-auth: ''
+```
+<!-- end usage -->
+
 **Basic:**
 
 ```yaml