easier_terms: update examples/navier_stokes/navier_stokes.py
easier_terms: update examples/navier_stokes/navier_stokes.py

vlukes/sfepy,sfepy/sfepy,lokik/sfepy,RexFuzzle/sfepy,lokik/sfepy,rc/sfepy,BubuLK/sfepy,lokik/sfepy,BubuLK/sfepy,vlukes/sfepy,vlukes/sfepy,rc/sfepy,BubuLK/sfepy,rc/sfepy,RexFuzzle/sfepy,lokik/sfepy,sfepy/sfepy,RexFuzzle/sfepy,sfepy/sfepy,RexFuzzle/sfepy