Link to CSEG article by Lee Hunt is broken

[mycarta]

Many correlation coefficients, null hypoteses, and high value, Lee Hunt, CSEG Recorder, December 2013

No longer at: https://csegrecorder.com/features/view/value-of-integrated-geophysics-201312

There is a copy at: https://csegrecorder.com/columns/view/value-of-integrated-geophysics-201312

Fix all references to this article

[mycarta]

Fixed link in all Python notebooks