Handle Missing Data: replace function

Code: https://github.com/codebasics/py/tree/master/pandas/6_handling_missing_data_replace

This pandas tutorial covers how dataframe.replace method can be used to replace specific values with some other values. It supports replacement using single value, a list, a regular expression and a dictionary. Often times you get data in one form and want to transform data into some other form as far as values are concerned. At this time replace method can be used to perform transformation.