[YAML] Fraud Detection MLOps Workflow Example (#36012)

* YAML pipeline example for fraud detection workflow

* Update README

Author: charlespnh

sdks/python/apache_beam/yaml/examples/transforms/ml/fraud_detection/README.md

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+
+# Fraud Detection MLOps - Feature Engineering and Model Evaluation
+
+This example demonstrates a Fraud Detection MLOps solution that uses Apache Beam
+YAML SDK for feature engineering and model evaluation to detect transaction
+frauds.
+
+The entire workflow is self-contained in the
+[fraud_detection_mlops_beam_yaml_sdk](./fraud_detection_mlops_beam_yaml_sdk.ipynb)
+notebook.