Added cor_map docstring

Author: micahkwok

eda_utils_py/eda_utils_py.py

@@ -0,0 +1,28 @@
+
+def cor_map(dataframe, num_col):
+    """
+    A function to implement a correlation heatmap including coefficients based on given numeric columns of a data frame.
+
+    Args:
+        dataframe (pandas.DataFrame): The data frame to be used for EDA.
+        num_col (list):  A list of string of column names with numeric data from the data frame.
+
+    Returns:
+        (altair): A correlation heatmap plot with correlation coefficient labels based on the numeric columns specified by user.
+
+    Examples: 
+        import pandas as pd
+        from eda_utils_py import cor_map
+
+        data = pd.DataFrame({
+            'SepalLengthCm':[5.1, 4.9, 4.7],
+            'SepalWidthCm':[1.4, 1.4, 1.3],
+            'PetalWidthCm:[0.2, 0.2, 0.2],
+            'Species':['Iris-setosa','Iris-virginica']
+        })
+
+        numerical_columns = ['SepalLengthCm','SepalWidthCm','PetalWidthCm']
+        
+        cor_map(data, numerical_columns)
+        
+    """