Update README.md

Author: gmh5225

README.md

@@ -5,13 +5,29 @@ GitHub action to set up llvm-msvc
 ## Use it in your workflow like this:
 ```
 - name: Setup llvm-msvc
-  uses: NewWorldComingSoon/setup-llvm-msvc@v1
+  uses: NewWorldComingSoon/setup-llvm-msvc@v2
+```
+```
+- name: Setup llvm-msvc
+  uses: NewWorldComingSoon/setup-llvm-msvc@v2
+  with:
+    version: llvm-msvc-build-v2.7
+    path: $GITHUB_WORKSPACE
+
 ```        
 
+API
+---
+
+| Input     | Value       | Default | Description
+| --------- | -------     | ------- | -----------
+| version   | latest      | ✓       | Install the latest version available in the repository.
+| path      | $env:TEMP   | ✓       | Path to store installer.
+
 ## Example
 ```
 - name: Setup llvm-msvc
-  uses: NewWorldComingSoon/setup-llvm-msvc@v1
+  uses: NewWorldComingSoon/setup-llvm-msvc@v2
 
 - name: Checkout
   uses: actions/checkout@v2