doc: Typo in the Website Python Sample code

[vibhatha]

The website shows the Python sample as follows

from pycylon import read_csv, DataFrame, CylonEnv
from pycylon.net import MPIConfig

config: MPIConfig = MPIConfig()
env: CylonEnv = CylonEnv(config=config, distributed=True)

df1: DataFrame = read_csv('/tmp/csv1.csv')
df2: DataFrame = read_csv('/tmp/csv2.csv')
                
df3: Table = df1.join(other=df2, on=[0], algorithm="hash", env=env)
        
print(df3)

I think the df3: Table must be df3: DataFrame.

[vibhatha]

cc @nirandaperera

[laszewsk]

please provide url of issue:
please provide link to repo managing Web site: