Change README.md date for release (#958)
Change README.md date for release (#958)

The master build was finally successful though the date needs to be changed.

Signed-off-by: Yong Tang <765086fe2e0c1f980161f127fec596800f327f62@outlook.com>
tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io,tensorflow/io