chore(README,actions.yaml): Improve documentation of the audience parameter

README.md

@@ -29,5 +29,5 @@ jobs:
       - name: Debug OIDC Claims
         uses: ./.github/actions/actions-oidc-debugger
         with:
-          audience: 'https://github.com/github'
+          audience: '${{ github.server_url }}/${{ github.repository_owner }}'
 ```

action.yml

@@ -2,7 +2,7 @@ name: 'OIDC Debugger'
 description: 'Print the GitHub Actions OIDC claims.'
 inputs:
   audience:
-    description: 'The audience to use when requesting the JWT.'
+    description: 'The audience to use when requesting the JWT. Your Github server URL and repository owner.'
     required: true
 runs:
   using: 'docker'