nb: restart and run all ....

examples/seismic/skew_self_adjoint/README.md

@@ -1,5 +1,13 @@
 # Devito Skew Self Adjoint modeling operators
 
+## These operators are contributed by Chevron Energy Technology Company (2020)
+
+These operators are based on simplfications of the systems presented in:
+<br>**Self-adjoint, energy-conserving second-order pseudoacoustic systems for VTI and TTI media for reverse time migration and full-waveform inversion** (2016)
+<br>Kenneth Bube, John Washbourne, Raymond Ergas, and Tamas Nemeth
+<br>SEG Technical Program Expanded Abstracts
+<br>https://library.seg.org/doi/10.1190/segam2016-13878451.1
+
 ## Tutorial goal
 
 The goal of this series of tutorials is to generate -- and then test for correctness -- the modeling and inversion capability in Devito for variable density visco- acoustics. We use an energy conserving form of the wave equation that is *skew self adjoint*, which allows the same modeling system to be used for all for all phases of finite difference evolution required for quasi-Newton optimization:
@@ -34,10 +42,6 @@ These notebooks first implement and then test for correctness for three types of
 [ssa_22_tti_implementation2.ipynb]: ssa_22_tti_implementation2.ipynb
 [ssa_23_tti_correctness.ipynb]:     ssa_23_tti_correctness.ipynb
 
-## These operators are contributed by Chevron Energy Technology Company (2020)
-
-These operators are based on simplfications of the systems presented in:
-<br>**Self-adjoint, energy-conserving second-order pseudoacoustic systems for VTI and TTI media for reverse time migration and full-waveform inversion** (2016)
-<br>Kenneth Bube, John Washbourne, Raymond Ergas, and Tamas Nemeth
-<br>SEG Technical Program Expanded Abstracts
-<br>https://library.seg.org/doi/10.1190/segam2016-13878451.1
+## Running unit tests
+- if you would like to see stdout when running the tests, use
+```py.test -c testUtils.py```