wk03 cookbook, fixed pep8 errors of 80 characters and tab and spacing, besides the definition spacing of 2. script has 4 spaces to equal tab spacing
wk03 cookbook, fixed pep8 errors of 80 characters and tab and spacing, besides the definition spacing of 2. script has 4 spaces to equal tab spacing

beyondvalence/biof509_wtl,beyondvalence/biof509_wtl