Editing HoustonWW2017 (section)

===Karl Schleicher===
Reproduces one to "The Leading Edge Tutorials",  Linear Inversion.  The Jupyter notebook must be changed if you want to run using Python 2.7 instead of 3.5.  This work lead to a new tutorial for :The Leading Edge" on the Conjugate Gradient Method.  This tutorial is tentatively scheduled to be published in April 2018. 
[https://drive.google.com/open?id=1g3qWvzcUFwHCnTAHtt7c94GJo8UfYLVz view schleicher's tle tutorial]<br>