tweak to update the doc for verified evals (#1162)

cc @Wauplin @coyotte508

modelcard.md

@@ -41,7 +41,7 @@ model-index:
         config: {metric_config}     # Optional. The name of the metric configuration used in `load_metric()`. Example: bleurt-large-512 in `load_metric("bleurt", "bleurt-large-512")`. See the `datasets` docs for more info: https://huggingface.co/docs/datasets/v2.1.0/en/loading#load-configurations
         args:
           {arg_0}: {value_0}        # Optional. The arguments passed during `Metric.compute()`. Example for `bleu`: max_order: 4
-        verified: true              # Optional. If true, indicates that evaluation was generated by Hugging Face (vs. self-reported).
+        verifyToken: {verify_token} # Optional. If present, this is a signature that can be used to prove that evaluation was generated by Hugging Face (vs. self-reported).
     source:                         # Optional. The source for this result.
       name: {source_name}           # Optional. The name of the source. Example: Open LLM Leaderboard.
       url: {source_url}             # Required if source is provided. A link to the source. Example: https://huggingface.co/spaces/HuggingFaceH4/open_llm_leaderboard.