fix: trying to escape special character.

hub_utils/readme.py

@@ -32,7 +32,7 @@ The pipeline contained in this repository was created using [this Space](https:/
         model_card += f"Following weight paths (KerasCV) were used \n: {weight_paths}"
 
     if placeholder_token is not None:
-        model_card += f"\n\nFollowing `placeholder_token` was added to the tokenizer: {placeholder_token}."
+        model_card += f"\n\nFollowing `placeholder_token` was added to the tokenizer: `{placeholder_token}`."
 
     with open(os.path.join(repo_folder, "README.md"), "w") as f:
         f.write(yaml + model_card)