steepestDescentDemo to python (#314)
steepestDescentDemo to python (#314)

* Add files via upload

steepestDescentDemo to python Issue - 190
figure number 8.13

* minor tweak

Co-authored-by: Mahmoud Soliman <be7e6b82b9e805d7d8f1e3aa263ce54621318c32@users.noreply.github.com>
probml/pyprobml,probml/pyprobml,probml/pyprobml,probml/pyprobml