Update wording

Based on https://docs.github.com/en/rest/pages?apiVersion=2022-11-28#create-a-github-pages-site

Co-authored-by: Yoann Chaudet <yoannchaudet@github.com>

action.yml

@@ -16,7 +16,7 @@ inputs:
     default: ${{ github.token }}
     required: true
   enablement:
-    description: 'Should a Pages site be enabled for the repository if not so already? This will only work for user-to-server tokens, or server-to-server tokens with both the `pages: write` and `administration: write` permissions granted.'
+    description: 'Try to enable Pages for the repository if it is not already enabled. This option requires a token other than GITHUB_TOKEN to be provided. In the context of a Personal Access Token, the repo scope or Pages write permission is required. In the context of a GitHub App, the administration:write and pages:write permissions are required.'
     default: 'false'
     required: false
 outputs: