docs: fix missing field in quickstart schema (#526)

Arize-ai · Apr 6, 2023 · 47be852 · 47be852
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commit 47be852
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diff --git a/README.md b/README.md
@@ -52,6 +52,7 @@ Define schemas that tell Phoenix which columns of your DataFrames correspond to
 
 ```python
 train_schema = px.Schema(
+    prediction_id_column_name="prediction_id",
     timestamp_column_name="prediction_ts",
     prediction_label_column_name="predicted_action",
     actual_label_column_name="actual_action",