update action name in example

README.md

@@ -26,7 +26,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Proof Reader AI Action
-        uses: ThieryMichel/proof-reader-ai@main
+        uses: marmelab/proof-reader-ai@main
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # The GITHUB_TOKEN is there by default so you just need to keep it like it is and not necessarily need to add it as secret as it will throw an error. [More Details](https://docs.github.com/en/actions/security-guides/automatic-token-authentication#about-the-github_token-secret)
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}