'Return None.
Extend each row of `self` with corresponding row of `table`.
Does **not** import formatting from ``table``.
This generally makes sense only if the two tables have
the same number of rows, but that is not enforced.
:note: To extend append a table below, just use `extend`,
which is the ordinary list method.  This generally makes sense
only if the two tables have the same number of columns,
but that is not enforced.'

def extend_right(self, table):

    for (row1, row2) in zip(self, table):
        row1.extend(row2)
