feat: updates & github event support

README.md

@@ -20,6 +20,7 @@ Example:
     url: ${{ secrets.WEBHOOK_URL }}
     headers: '{"repository": "joelwmale/webhook-action"}'
     body: '{"event": "deployment", "repository": "joelwmale/webhook-action"}'
+    github_event: ${{ toJson(github.event) }}
 ```
 
 It is **highly** recommended to use the action is an explicit commit SHA-1:
@@ -34,6 +35,7 @@ The action has support for the following input variables (arguments):
 * **`headers`** (**optional**): Any headers you want to be sent with the webhook
 * **`body`** (**optional**): The body of data send with the webhook
 * **`insecure`** (**optional**): Enables calling to known self-signed or invalid SSL certificates
+* **`github_event`** (**optional**): Enables forwarding the Github event to your webhook
 
 You can find more information on how to use these input variables below.