Update examples in README to be compatible with soon-to-come ChatWidget

README.md

@@ -19,7 +19,9 @@ datasets:
 - HuggingFaceH4/ultrachat_200k
 - meta-math/MetaMathQA
 widget:
-- text: "<|prompt|>Why is drinking water so healthy?</s><|answer|>"
+- messages:
+  - role: user
+    content: Why is drinking water so healthy?
 ---
 # Model Card
 ## Summary