feat: add dataset and spark base code

spark_code.py

+from pyspark.sql import SparkSession
+
+# Initialize Spark session
+spark = SparkSession.builder.appName("ChurnPrediction").getOrCreate()
+
+# Load the dataset
+df = spark.read.csv("telco_customer_churn.csv", header=True, inferSchema=True)
+
+# Show the DataFrame
+df.show()
+
+# Stop the Spark session
+spark.stop()
\ No newline at end of file